Description of System Words %SW48 to %SW69
Original instructions
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Detailed Description
Description of system words %SW48 to %SW69:
Word
Symbol
%SW48
IOEVTNB
Function
Number of events
Initial State
0
Platforms
M340: Yes M580: Yes M580 Safety: Yes Quantum: Yes Momentum: No Premium: Yes Atrium: Yes
This word indicates the IO events and telegram number processed since the last cold start. This word can be written by the program or the terminal
NOTE: Telegram is available only for Premium PLCs.
%SW49
DAYOFWEEK
%SW50
SEC
%SW51
HOURMIN
%SW52
MONTHDAY
%SW53
YEAR
Function
Real-time clock function
Initial State
–
Platforms
M340: Yes M580: Yes M580 Safety: Yes Quantum: Yes Momentum: Yes Premium: Yes Atrium: Yes
System words containing date and current time (in BCD):
  • %SW49: day of the week:
    • 1 = Monday
    • 2 = Tuesday
    • 3 = Wednesday
    • 4 = Thursday
    • 5 = Friday
    • 6 = Saturday
    • 7 = Sunday
  • %SW50: Seconds (16#SS00)
  • %SW51: Hours and Minutes (16#HHMM)
  • %SW52: Month and Day (16#MMDD)
  • %SW53: Year (16#YYYY)
These words are managed by the system when the bit %S50 is set to 0.
These words can be written by the user program or by the terminal when the bit %S50 is set to 1.
For M580:
The current time is in UTC (Coordinated Universal Time). If a local time is needed, use the RRTC_DT function.
%SW54
STOPSEC
%SW55
STOPHM
%SW56
STOPMD
%SW57
STOPYEAR
%SW58
STOPDAY
Function
Real-time clock function on last stop
Initial State
–
Platforms
M340: Yes M580: Yes M580 Safety: Yes Quantum: Yes Momentum: Yes Premium: Yes Atrium: Yes
System words containing date and time of the last power failure or PLC stop (in Binary Coded Decimal):
  • %SW54: Seconds (00SS)
  • %SW55: Hours and Minutes (HHMM)
  • %SW56: Month and Day (MMDD)
  • %SW57: Year (YYYY)
  • %SW58: the most significant byte contains the day of the week (1 for Monday through to 7 for Sunday), and the least significant byte contains the code for the last stop:
    • 1 = change from RUN to STOP by the terminal or the dedicated input.
    • 2 = stop by watchdog (PLC task or SFC overrun).
    • 4 = power outage or memory card lock operation.
    • 5 = stop on hardware fault.
    • 6 = stop on software fault. Details on the type of software fault are stored in %SW125.
%SW59
ADJDATETIME
Function
Adjustment of current date
Initial State
0
Platforms
M340: Yes M580: Yes M580 Safety: Yes Quantum: Yes Momentum: Yes Premium: Yes Atrium: Yes
Contains two 8-bit series to adjust the current date.
The action is always performed on the rising edge of the bit.
This word is enabled by bit %S59=1.
In the following illustration, bits in the left column increment the value, and bits in the right column decrement the value:
%SW60
HSBY_CMD
Function
Hot standby command register
Initial State
0
Platforms
M340: No M580: No M580 Safety: No Quantum: Yes Momentum: No Premium: Yes Atrium: No
%SW61
HSBY_STS
Function
Hot standby status register
Initial State
0
Platforms
M340: No M580: No M580 Safety: No Quantum: Yes Momentum: No Premium: Yes Atrium: No
%SW62
HSBY_REVERSE0
%SW63
HSBY_REVERSE1
%SW64
HSBY_REVERSE2
%SW65
HSBY_REVERSE3
Function
Hot standby reverse transfer words
Initial State
0
Platforms
M340: No M580: No M580 Safety: No Quantum: Yes Momentum: No Premium: Yes Atrium: No
%SW66
CCOTF_STATUS
Function
Quantum: Status of an Ethernet I/O configuration change
M580: CCOTF Status
Initial State
0
Platforms
 M340: No M580: Yes M580 Safety: No Quantum: Yes Momentum: No Premium: No Atrium: No
Meaning of the bytes of the word %SW66 (XXYY):
  • Lower byte (YY): processing status
  • Higher byte (XX): detailed status
NOTE: For detail meaning of the lower and higher bytes of the word %SW66, please refer to the tables below.
YY: The lower byte of the word is associated with the CCOTF processing status codes 00 to 05 (in hex):
YY: Lower byte (hex)
Quantum
M580
00
Idle
01
In progress
02
Completed
03
Did not complete, but can recover
04
Did not complete, cannot recover
05
Did not complete, CCOTF was rejected by the Drop
XX: The higher byte of the word is associated with the CCOTF detailed status codes 00 to FF (in hex):
XX: Higher byte (hex)
Quantum
M580
00
Idle
01
Request length invalid
02
Request header invalid
03
Request descriptor invalid
04
Request signature invalid
05
Request server invalid
06
FDR server invalid
07
Header request ID invalid
08
Header drop ID invalid
09
Header device name invalid
0A
Descriptor length invalid
0B
Descriptor RTE invalid
0C
Descriptor offset invalid
0D
Signature length invalid
0E
Signature data invalid
0F
Signature count invalid
10
FDR IP invalid
11
FDR subnet mask invalid
12
FDR gateway invalid
13
EIP CID invalid
14
EIP device number invalid
15
EIP IP invalid
16
EIP vender ID invalid
17
EIP product type invalid
18
EIP product code invalid
19
EIP time-out invalid
1A
EIP OT RPI invalid
1B
EIP TO RPI
1C
EIP path invalid
1D
Process succeed
1E
Process busy
1F
Drop does not exist
20
Drop already exists
21
Drop not reachable
22
Process device manager detected error
23
Process FDR builder detected error
24
Process FDR server detected error
25
Process EIP scanner detected error
26
Process EIP signature mismatch
27
Process EIP connection rejected
28
Process unknown detected error
29...3F
Reserved
4C
Maximum CCOTF retries reached
CCOTF response time-out
4D
Invalid signature detected by CPU
Invalid event received
4E
For CPU: Detected error for communication to CRP
Reserved
4F
For CPU: IOPL error (build or swap)
Reserved
50
CRA received wrong communication parameter detected error
51
FDR server did not respond
52
Detected error when downloading PRM file from server
53
CRA downloaded a zero size file from FDR server
54
Invalid configuration in PRM (for example, invalid CRC, invalid configuration or signature mismatch: managed by MC)
55
PRM download time-out
56
All other detected errors (for example, CCOTF count difference between new and old configuations is greater than 1)
57
Reserved
CRA internal detected error
58...FE
Reserved
FF
Unknown detected error
Description of system words %SW67 to %SW69:
Word
Symbol
%SW67
TIME_STAMP_RECORDS
Function
Time stamping event number
Initial State
0
Platforms
M340: No M580: Yes M580 Safety: Yes Quantum: No Momentum: No Premium: No Atrium: No
This word contains the number of time stamp records available in the module local buffer.
NOTE: The events read but not acknowledged are not included.
%SW68
HSBY_APP_STATUS
Function
Hot Standby application status
Initial State
0
Platforms
M340: No M580: No M580 Safety: No Quantum: Yes Momentum: No Premium: No Atrium: No
For detail, refer to chapter Quantum Hot Standby System Word description %SW60 to %SW69.
%SW69
HSBY_FW_MISMATCH
Function
Hot standby firmware mismatch register
Initial State
0
Platforms
M340: No M580: No M580 Safety: No Quantum: Yes Momentum: No Premium: No Atrium: No
For detail, refer to chapter Quantum Hot Standby System Word description %SW60 to %SW69.