Description of Quantum-specific System Words %SW180 to %SW764

Word Symbol
%SW180 to %SW339 IOHEALTHij i=1...32, j=1...5	Function	Health bits of the PLC modules (Including Hot Standby CPUs)
Initial State	0
Words %SW180 and %SW181 are associated with the Standalone or Primary PLC local racks: main rack for %SW180 and extension rack for %SW181. Words %SW182 and %SW183 are associated with the Standby PLC: main rack for %SW182 and extension rack for %SW183. NOTE: SW182 and %SW183 are not used in a Standalone PLC. NOTE: Safety Hot Standby systems don’t have extension racks so they do not use SW181 and %SW183 system words. %SW184 is reserved. Words %SW185 to %SW339 are associated with drops 2 to 32. Each drop has 5 words assigned to the main and up to four configured extension racks: %SW185: module health bits of the S908 drop 2, rack 1 (main). %SW186: module health bits of the S908 drop 2, rack 2 (extension). %SW187 module health bits of the S908 drop 2, rack 3 (extension). %SW188 module health bits of the S908 drop 2, rack 4 (extension). %SW189 module health bits of the S908 drop 2, rack 5 (extension). ... %SW335: module health bits of the S908 drop 32, rack 1. %SW336: module health bits of the S908 drop 32, rack 2. %SW337 module health bits of the S908 drop 32, rack 3. %SW338 module health bits of the S908 drop 32, rack 4. %SW339 module health bits of the S908 drop 32, rack 5. NOTE: The Quantum drops support only two racks and system words for rack 3, 4, and 5 are not used. The 800 Series I/O drops support up to five racks. Bits 0 to 15 of each of these words are associated with the modules located in positions 16 to 1 of these racks. The bit equals 0 if the module is inoperative and equals 1 if the module is operating correctly. Example: %SW185.5 = 0: the module located in drop 2, main rack, slot 11 is inoperative. NOTE: Modules 140 XBE 100 00 require a special management. NOTE: Extension racks are not used in Safety PLCs, only the PLCs main rack system words (%SW180, %SW185, %SW190...%SW335) are available in Safety PLCs.
%SW340 MB+DIOSLOT	Function	Slot number of the processor with Modbus+ link
Initial State	–
Slot number of the processor with the built-in Modbus+ link for connection to the first DIO network. The slot number is coded from 0 to 15. NOTE: This word is not available on Quantum safety PLCs.
%SW341 to %SW404 MB+IOHEALTHi i=1...64	Function	Operating status of the distributed station modules of the first DIO network
Initial State	–
The words %SW341 to %SW404 are associated with the distributed stations (DIO): 64 words associated with the 64 DIO stations of the first network: %SW341: operating status of the station 1 modules. %SW342: operating status of the station 2 modules. ... %SW404: operating status of the station 64 modules. Bits 0 to 15 of each of these words are associated with the modules located in positions 16 to 1 of these stations. The bit is set to 0 if the module is faulty, and set to 1 if the module is operating correctly. Example: %SW362.5 =0 The module located in station 22 slot 11 of the first DIO network is faulty. NOTE: For modules 140 CRA 2•• ••• the value of this bit is not significant, and is always set to 0. NOTE: These words are not available on safety PLCs and Quantum Ethernet I/O DIO network.
%SW405 NOM1DIOSLOT	Function	Slot number of the first interface module of the DIO network
Initial State	–
Slot number of module 140 NOM 2•• •• for connection to the second DIO network. The slot number is coded from 0 to 15. NOTE: This word is not available on Quantum safety PLCs.
%SW406 to %SW469 NOM1DIOHEALTHi i=1...64	Function	Operating status of the distributed station modules of the second DIO network
Initial State	–
The words %SW406 to %SW469 are associated with the distributed stations (DIO): 64 words associated with the 64 DIO stations of the second network: %SW406: operating status of the station 1 modules. %SW407: operating status of the station 2 modules. ... %SW469: operating status of the station 64 modules. Bits 0 to 15 of each of these words are associated with the modules located in positions 16 to 1 of these stations. The bit is set to 0 if the module is faulty, and set to 1 if the module is operating correctly. Example: %SW412.5 = 0 The module located in station 7 slot 11 of the second DIO network is faulty. NOTE: For modules 14 CRA 2•• ••• the value of this bit is not significant, and is always set to 0. NOTE: These words are not available on safety PLCs and Quantum Ethernet I/O DIO network.
%SW470 NOM2DIOSLOT	Function	Slot number of the second interface module of the DIO network
Initial State	–
Slot number of module 140 NOM 2•• •• for connection to the third DIO network. The slot number is coded from 0 to 15. NOTE: This word is not available on Quantum safety PLCs.
%SW471 to %SW534 NOM2DIOHEALTHi i=1...64	Function	Operating status of the distributed station modules of the third DIO network
Initial State	–
The words %SW471 to %SW534 are associated with the distributed stations (DIO): 64 words associated with the 64 DIO stations of the third network: %SW471: operating status of the station 1 modules. %SW472: operating status of the station 2 modules. ... %SW534: operating status of the station 64 modules. Bits 0 to 15 of each of these words are associated with the modules located in positions 16 to 1 of these stations. The bit is set to 0 if the module is faulty, and set to 1 if the module is operating correctly. Example: %SW520.5 = 0 The module located in station 86 slot 11 of the third DIO network is faulty. NOTE: For modules 140 CRA 2•• ••• the value of this bit is not significant, and is always set to 0. NOTE: These words are not available on safety PLCs and Quantum Ethernet I/O DIO network.
%SW535 RIOERRSTAT	Function	RIO error on start-up
Initial State	–
This word stores the start-up error code. This word is always set to 0 when the system is running; in the event of error, the PLC does not start up, but generates a stop status code. 01: I/O assignment length 02: Remote I/O link number 03: Number of stations in the I/O assignment 04: I/O assignment checksum 10: Length of the station descriptor 11: I/O station number 12: Station autonomy time 13: ASCII port number 14: Number of station modules 15: Station already configured 16: Port already configured 17: More than 1024 output points 18: More than 1024 input points 20: Module slot address 21: Module rack address 22: Number of output bytes 23: Number of input bytes 25: First reference number 26: Second reference number 28: Internal bits outside the 16 bit range 30: Unpaired odd output module 31: Unpaired odd input module 32: Unpaired odd module reference 33: Reference 1x after register 3x 34: Reference of dummy module already used 35: Module 3x is not a dummy module 36: Module 4x is not a dummy module
%SW536 CAERRCNT1 %SW537 CAERRCNT2 %SW538 CAERRCNT3	Function	Communication status on cable A
Initial State	–
The words %SW536 to %SW538 are the communication error words on cable A. %SW536: most significant byte: counts framing errors least significant byte: counts overruns of the DMA receiver. %SW537: most significant byte: counts receiver errors least significant byte: counts incorrect station receptions. %SW538: %SW538.15 = 1, short frame %SW538.14 = 1, no end-of-frame %SW538.3 = 1, CRC error %SW538.2 = 1, alignment error %SW538.1 = 1, overrun error %SW538.13 to %SW538.4 and %SW538.0 are unused
%SW539 CBERRCNT1 %SW540 CBERRCNT2 %SW541 CBERRCNT3	Function	Communication status on cable B
Initial State	–
The words %SW539 to %SW541 are the communication error words on cable B. %SW539: most significant byte: counts framing errors. least significant byte: counts overruns of the DMA receiver. %SW540: most significant byte: counts receiver errors. least significant byte: counts incorrect station receptions. %SW541: %SW541.15 = 1, short frame %SW541.14 = 1, no end-of-frame %SW541.3 = 1, CRC error %SW541.2 = 1, alignment error %SW541.1 = 1, overrun error %SW541.13 to %SW541.4 and %SW541.0 are unused
%SW542 GLOBERRCNT0 %SW543 GLOBERRCNT1 %SW544 GLOBERRCNT2	Function	Global communication status
Initial State	–
The words %SW542 to %SW544 are the global communication error words. %SW542: displays the global communication status: %SW542.15 = 1, communication operating correctly. %SW542.14 = 1, communication on cable A operating correctly. %SW542.13 = 1, communication on cable B operating correctly. %SW542.11 to %SW542.8 = lost communications counter. %SW542.7 to %SW542.0 = retry totalizer counter. NOTE: If the cable A is disconnected from the Standby PLC, standby status remains active. So the Primary PLC takes into account standby PLC, but instead of showing %SW542.14 = 0, the Primary %SW542.14 toggles between 0 and 1. %SW543: is the global error totalizer counter for cable A: most significant byte: counts the errors detected. least significant byte: counts "non-responses". %SW544: is the global error totalizer counter for cable B: most significant byte: counts the errors detected. least significant byte: counts "non-responses".
%SW545 MODUNHEALTH1 %SW546 IOERRCNT1 %SW547 IORETRY1	Function	Status of the local station
Initial State	–
For the PLCs where station 1 is reserved for local input/outputs, the status words %SW545 to %SW547 are used in the following way: %SW545: status of the local station: %SW545.15 = 1, all modules are operating correctly. %SW545.14 to %SW545.8 = unused, always set to 0. %SW545.7 to %SW545.0 = number of times the module has appeared defective; the counter loops back at 255. %SW546: this is used as a counter for 16-bit input/output bus errors. %SW547: this is used as a counter for 16-bit input/output bus repetitions.
%SW548 to %SW640 MODUNHEALTHi IOERRCNTi IORETRYi i=2...32	Function	Status of decentralized stations
Initial State	–
The words %SW548 to %SW640 are used to describe the status of the decentralized stations. 3 status words are used for each station: %SW548: displays the global communication status for station 2: %SW548.15 = 1, communication operating correctly. %SW548.14 = 1, communication on cable A operating correctly. %SW548.13 = 1, communication on cable B operating correctly. %SW548.11 to %SW548.8 = lost communications counter. %SW548.7 to %SW548.0 = retry totalizer counter. %SW549: is the global error totalizer counter for cable A station 2: most significant byte: counts the errors detected. least significant byte: counts "non-responses". %SW550: is the global error totalizer counter for cable B station 2: most significant byte: counts the errors detected. least significant byte: counts "non-responses". The words: %SW551 to %SW553 are assigned to station 3. %SW554 to %SW556 are assigned to station 4. ... %SW638 to %SW640 are assigned to station 32.
%SW641 to %SW702 ERIO_MOD_HEALTH	Function	Ethernet RIO Module Health bit status
Initial State	0
The words %SW641 to %SW702 are the Quantum Ethernet I/O module health bits: %SW641: health bits of the modules on rack 1, drop 1. %SW641: rack 0 in BMX CRA 312 •0 drop 1. rack 1 in 140 CRA 312 00 drop 1. %SW642: rack 1 in BMX CRA 312 •0 drop 1. rack 2 in 140 CRA 312 00 drop 1. NOTE: for BMX CRA 312 •0 Rack 0 is the main rack. Rack 1 is the extension rack. ... %SW701: rack 0 in BMX CRA 312 •0 drop 31. rack 1 in 140 CRA 312 00 drop 31. %SW702: rack 1 in BMX CRA 312 •0 drop 31. rack 2 in 140 CRA 312 00 drop 31. Bits 0 to 15 of each of these words are associated with the modules located in positions: 16 to 1 of the 140 CRA 312 00 Drop module. 15 to 0 of the BMX CRA 312 •0 Drop module. The bit is set to 0 if the module has a detected error. It is set to 1 if the module is operating correctly. NOTE: For BMX CRA 312 •0 drops the Power supply health bit is not significant.

Word

Symbol

%SW180 to %SW339

IOHEALTHij

i=1...32, j=1...5

Function

Health bits of the PLC modules (Including Hot Standby CPUs)

Initial State

0

Words %SW180 and %SW181 are associated with the Standalone or Primary PLC local racks: main rack for %SW180 and extension rack for %SW181.

Words %SW182 and %SW183 are associated with the Standby PLC: main rack for %SW182 and extension rack for %SW183.

NOTE: SW182 and %SW183 are not used in a Standalone PLC.

NOTE: Safety Hot Standby systems don’t have extension racks so they do not use SW181 and %SW183 system words.

%SW184 is reserved.

Words %SW185 to %SW339 are associated with drops 2 to 32. Each drop has 5 words assigned to the main and up to four configured extension racks:

%SW185: module health bits of the S908 drop 2, rack 1 (main).
%SW186: module health bits of the S908 drop 2, rack 2 (extension).
%SW187 module health bits of the S908 drop 2, rack 3 (extension).
%SW188 module health bits of the S908 drop 2, rack 4 (extension).
%SW189 module health bits of the S908 drop 2, rack 5 (extension).
...
%SW335: module health bits of the S908 drop 32, rack 1.
%SW336: module health bits of the S908 drop 32, rack 2.
%SW337 module health bits of the S908 drop 32, rack 3.
%SW338 module health bits of the S908 drop 32, rack 4.
%SW339 module health bits of the S908 drop 32, rack 5.

NOTE: The Quantum drops support only two racks and system words for rack 3, 4, and 5 are not used. The 800 Series I/O drops support up to five racks.

Bits 0 to 15 of each of these words are associated with the modules located in positions 16 to 1 of these racks.

The bit equals 0 if the module is inoperative and equals 1 if the module is operating correctly.

Example: %SW185.5 = 0: the module located in drop 2, main rack, slot 11 is inoperative.

NOTE: Modules 140 XBE 100 00 require a special management.

NOTE: Extension racks are not used in Safety PLCs, only the PLCs main rack system words (%SW180, %SW185, %SW190...%SW335) are available in Safety PLCs.

%SW340

MB+DIOSLOT

Function

Slot number of the processor with Modbus+ link

Initial State

–

Slot number of the processor with the built-in Modbus+ link for connection to the first DIO network. The slot number is coded from 0 to 15.

NOTE: This word is not available on Quantum safety PLCs.

%SW341 to %SW404

MB+IOHEALTHi

i=1...64

Function

Operating status of the distributed station modules of the first DIO network

Initial State

–

The words %SW341 to %SW404 are associated with the distributed stations (DIO): 64 words associated with the 64 DIO stations of the first network:

%SW341: operating status of the station 1 modules.
%SW342: operating status of the station 2 modules.
...
%SW404: operating status of the station 64 modules.

Bits 0 to 15 of each of these words are associated with the modules located in positions 16 to 1 of these stations.

The bit is set to 0 if the module is faulty, and set to 1 if the module is operating correctly.

Example: %SW362.5 =0

The module located in station 22 slot 11 of the first DIO network is faulty.

NOTE: For modules 140 CRA 2•• ••• the value of this bit is not significant, and is always set to 0.

NOTE: These words are not available on safety PLCs and Quantum Ethernet I/O DIO network.

%SW405

NOM1DIOSLOT

Function

Slot number of the first interface module of the DIO network

Initial State

–

Slot number of module 140 NOM 2•• •• for connection to the second DIO network.

The slot number is coded from 0 to 15.

NOTE: This word is not available on Quantum safety PLCs.

%SW406 to %SW469

NOM1DIOHEALTHi

i=1...64

Function

Operating status of the distributed station modules of the second DIO network

Initial State

–

The words %SW406 to %SW469 are associated with the distributed stations (DIO): 64 words associated with the 64 DIO stations of the second network:

%SW406: operating status of the station 1 modules.
%SW407: operating status of the station 2 modules.
...
%SW469: operating status of the station 64 modules.

Bits 0 to 15 of each of these words are associated with the modules located in positions 16 to 1 of these stations.

The bit is set to 0 if the module is faulty, and set to 1 if the module is operating correctly.

Example: %SW412.5 = 0

The module located in station 7 slot 11 of the second DIO network is faulty.

NOTE: For modules 14 CRA 2•• ••• the value of this bit is not significant, and is always set to 0.

NOTE: These words are not available on safety PLCs and Quantum Ethernet I/O DIO network.

%SW470

NOM2DIOSLOT

Function

Slot number of the second interface module of the DIO network

Initial State

–

Slot number of module 140 NOM 2•• •• for connection to the third DIO network.

The slot number is coded from 0 to 15.

NOTE: This word is not available on Quantum safety PLCs.

%SW471 to %SW534

NOM2DIOHEALTHi

i=1...64

Function

Operating status of the distributed station modules of the third DIO network

Initial State

–

The words %SW471 to %SW534 are associated with the distributed stations (DIO): 64 words associated with the 64 DIO stations of the third network:

%SW471: operating status of the station 1 modules.
%SW472: operating status of the station 2 modules.
...
%SW534: operating status of the station 64 modules.

Bits 0 to 15 of each of these words are associated with the modules located in positions 16 to 1 of these stations.

The bit is set to 0 if the module is faulty, and set to 1 if the module is operating correctly.

Example: %SW520.5 = 0

The module located in station 86 slot 11 of the third DIO network is faulty.

NOTE: For modules 140 CRA 2•• ••• the value of this bit is not significant, and is always set to 0.

NOTE: These words are not available on safety PLCs and Quantum Ethernet I/O DIO network.

%SW535

RIOERRSTAT

Function

RIO error on start-up

Initial State

–

This word stores the start-up error code. This word is always set to 0 when the system is running; in the event of error, the PLC does not start up, but generates a stop status code.

01: I/O assignment length

02: Remote I/O link number

03: Number of stations in the I/O assignment

04: I/O assignment checksum

10: Length of the station descriptor

11: I/O station number

12: Station autonomy time

13: ASCII port number

14: Number of station modules

15: Station already configured

16: Port already configured

17: More than 1024 output points

18: More than 1024 input points

20: Module slot address

21: Module rack address

22: Number of output bytes

23: Number of input bytes

25: First reference number

26: Second reference number

28: Internal bits outside the 16 bit range

30: Unpaired odd output module

31: Unpaired odd input module

32: Unpaired odd module reference

33: Reference 1x after register 3x

34: Reference of dummy module already used

35: Module 3x is not a dummy module

36: Module 4x is not a dummy module

%SW536

CAERRCNT1

%SW537

CAERRCNT2

%SW538

CAERRCNT3

Function

Communication status on cable A

Initial State

–

The words %SW536 to %SW538 are the communication error words on cable A.

%SW536:
- most significant byte: counts framing errors
- least significant byte: counts overruns of the DMA receiver.
%SW537:
- most significant byte: counts receiver errors
- least significant byte: counts incorrect station receptions.
%SW538:
- %SW538.15 = 1, short frame
- %SW538.14 = 1, no end-of-frame
- %SW538.3 = 1, CRC error
- %SW538.2 = 1, alignment error
- %SW538.1 = 1, overrun error
- %SW538.13 to %SW538.4 and %SW538.0 are unused

%SW539

CBERRCNT1

%SW540

CBERRCNT2

%SW541

CBERRCNT3

Function

Communication status on cable B

Initial State

–

The words %SW539 to %SW541 are the communication error words on cable B.

%SW539:
- most significant byte: counts framing errors.
- least significant byte: counts overruns of the DMA receiver.
%SW540:
- most significant byte: counts receiver errors.
- least significant byte: counts incorrect station receptions.
%SW541:
- %SW541.15 = 1, short frame
- %SW541.14 = 1, no end-of-frame
- %SW541.3 = 1, CRC error
- %SW541.2 = 1, alignment error
- %SW541.1 = 1, overrun error
- %SW541.13 to %SW541.4 and %SW541.0 are unused

%SW542

GLOBERRCNT0

%SW543

GLOBERRCNT1

%SW544

GLOBERRCNT2

Function

Global communication status

Initial State

–

The words %SW542 to %SW544 are the global communication error words.

%SW542: displays the global communication status:
- %SW542.15 = 1, communication operating correctly.
- %SW542.14 = 1, communication on cable A operating correctly.
- %SW542.13 = 1, communication on cable B operating correctly.
- %SW542.11 to %SW542.8 = lost communications counter.
- %SW542.7 to %SW542.0 = retry totalizer counter.
NOTE: If the cable A is disconnected from the Standby PLC, standby status remains active. So the Primary PLC takes into account standby PLC, but instead of showing %SW542.14 = 0, the Primary %SW542.14 toggles between 0 and 1.
%SW543: is the global error totalizer counter for cable A:
- most significant byte: counts the errors detected.
- least significant byte: counts "non-responses".
%SW544: is the global error totalizer counter for cable B:
- most significant byte: counts the errors detected.
- least significant byte: counts "non-responses".

%SW545

MODUNHEALTH1

%SW546

IOERRCNT1

%SW547

IORETRY1

Function

Status of the local station

Initial State

–

For the PLCs where station 1 is reserved for local input/outputs, the status words %SW545 to %SW547 are used in the following way:

%SW545: status of the local station:
- %SW545.15 = 1, all modules are operating correctly.
- %SW545.14 to %SW545.8 = unused, always set to 0.
- %SW545.7 to %SW545.0 = number of times the module has appeared defective; the counter loops back at 255.
%SW546: this is used as a counter for 16-bit input/output bus errors.
%SW547: this is used as a counter for 16-bit input/output bus repetitions.

%SW548 to %SW640

MODUNHEALTHi IOERRCNTi IORETRYi

i=2...32

Function

Status of decentralized stations

Initial State

–

The words %SW548 to %SW640 are used to describe the status of the decentralized stations. 3 status words are used for each station:

%SW548: displays the global communication status for station 2:
- %SW548.15 = 1, communication operating correctly.
- %SW548.14 = 1, communication on cable A operating correctly.
- %SW548.13 = 1, communication on cable B operating correctly.
- %SW548.11 to %SW548.8 = lost communications counter.
- %SW548.7 to %SW548.0 = retry totalizer counter.
%SW549: is the global error totalizer counter for cable A station 2:
- most significant byte: counts the errors detected.
- least significant byte: counts "non-responses".
%SW550: is the global error totalizer counter for cable B station 2:
- most significant byte: counts the errors detected.
- least significant byte: counts "non-responses".

The words:

%SW551 to %SW553 are assigned to station 3.
%SW554 to %SW556 are assigned to station 4.
...
%SW638 to %SW640 are assigned to station 32.

%SW641 to %SW702

ERIO_MOD_HEALTH

Function

Ethernet RIO Module Health bit status

Initial State

0

The words %SW641 to %SW702 are the Quantum Ethernet I/O module health bits:

%SW641: health bits of the modules on rack 1, drop 1.

%SW641:

rack 0 in BMX CRA 312 •0 drop 1.
rack 1 in 140 CRA 312 00 drop 1.

%SW642:

rack 1 in BMX CRA 312 •0 drop 1.
rack 2 in 140 CRA 312 00 drop 1.

NOTE:

for BMX CRA 312 •0

Rack 0 is the main rack.
Rack 1 is the extension rack.

...

%SW701:

rack 0 in BMX CRA 312 •0 drop 31.
rack 1 in 140 CRA 312 00 drop 31.

%SW702:

rack 1 in BMX CRA 312 •0 drop 31.
rack 2 in 140 CRA 312 00 drop 31.

Bits 0 to 15 of each of these words are associated with the modules located in positions:

16 to 1 of the 140 CRA 312 00 Drop module.
15 to 0 of the BMX CRA 312 •0 Drop module.

The bit is set to 0 if the module has a detected error.

It is set to 1 if the module is operating correctly.

NOTE: For BMX CRA 312 •0 drops the Power supply health bit is not significant.