Communication Module Diagnostics in Control Expert
Original instructions
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Overview
Use the Ethernet Module window in Control Expert to diagnose the BMX NOC 0401 Ethernet communication module. In this window, you can access:
Module Status Icons
The Ethernet Module window displays three icons that reflect the current status of the following LEDs:
Refer to the description of LED indicators for information on how to use these icons.
Accessing Module Detected Faults
To display the detected active faults on the communication module:
Step
Action
1
In the Channel area, select the communication module. The following pages are displayed:
  • Overview
  • Fault
  • I/O Objects
2
To display the communication module’s active detected faults, click on the Fault page:
NOTE: You can also access the module detected error bit by using the Control Expert Animation Table to display the %Ir.m.MOD.ERR object.
Managing I/O Objects
Use the I/O Objects page to view module I/O objects, and to manage the association of these objects with variables.
Open the I/O Objects page by selecting the I/O Objects tab, after the communication module has been selected in the Channel area:
NOTE:
  • The BMX NOC 0401 communication module supports only Channel, System, and Status I/O Objects. Not every bit is used.
  • Refer to the Control Expert help for instructions on how to use the I/O Objects page.
Reading I/O Objects
Use a READ_STS function block in Control Expert to update each of the following types of data:
Updating module data:
To display module information, follow these steps:
Step
Action
1
Configure the READ_STS function block, as follows:
Where:
r = rack or station number
m = module or slot number
MOD = a constant indicating module data
2
To view the data updated by the READ_STS function block, enter the corresponding direct addresses in the Control Expert Animation table, or use them in your program logic:
Object
Description
%Ir.m.MOD.ERR
Module detected error bit
%Ir.m.MOD.ERR is implicitly updated based on %Ir.m.0.ERR
%MWr.m.MOD.0
Exchange Status:
Bit 0: reading of module status in progress
%MWr.m.MOD.1
Exchange Report:
Bit 0: detected error while reading module status
%MWr.m.MOD.2
Bit 0: internal fault detected
Bit 1: operational fault detected
Bit 2: not used
Bit 3: self test
Bit 4: not used
Bit 5: configuration fault detected
Bit 6: missing module or off
Bit 7: not used
Updating channel data:
To display channel information, follow these steps:
Step
Action
1
Configure the READ_STS function block, as follows:
Where:
r = rack, or station, number
m = module, or slot, number
ch = channel number—set to 0 for ETC transactions
2
To view the data updated by the READ_STS function block, enter the corresponding direct addresses in the Control Expert Animation table, or use them in your program logic:
Object
Description
Standard Symbol
%Ir.m.ch.ERR
Channel detected error bit
CH_ERROR
%Ir.m.ch.0
Status of Ethernet services:
—
Bit 0: EIP Scanner (0 = OK, 1 = NOK)
—
Bit 1: EIP Adapter (0 = OK, 1 = NOK)
—
Bit 2: EIP Client (0 = OK, 1 = NOK)
—
Bit 3: EIP Server (0 = OK, 1 = NOK)
—
Bit 4: Modbus scanner (0 = OK, 1 = NOK)
—
Bit 5: Modbus TCP Client (0 = OK, 1 = NOK)
—
Bit 6: Modbus TCP Server (0 = OK, 1 = NOK)
—
Bit 7: FDR Server (0 = OK, 1 = NOK)
—
Bit 8: RSTP (0 = OK, 1 = NOK)
—
Bit 9–Bit 15: reserved
—
%MWr.m.ch.0
Exchange Status:
EXCH_STS
Bit 0: reading of status words of the channel in progress
STS_IN_PROG
Bit 1: command write in progress
CMD_IN_PROG
%MWr.m.ch.1
Exchange Report:
EXCH_RPT
Bit 0: detected error while reading channel status
STS_ERR
Bit 1: detected error while writing a command to the channel
CMD_ERR
2
cont’d
%MWr.m.ch.2
Standard channel status (low byte):
—
Bits 0...3: reserved (0)
—
Bit 4: internal fault detected
—
Bit 5: not used (0)
—
Bit 6: X-Bus communication fault detected
—
Bit 7: application fault detected (conf fault detected)
—
High byte:
—
Bits 0...7: reserved (0)
—
%MWr.m.ch.3
Ethernet Port Global Status:
ETH_PORT_STATUS
Bit 0: detected configuration error
—
Bit 1: the Ethernet interface is disabled
—
Bit 2: duplicate IP address detected
—
Bit 3: configuration mismatch
—
Bit 4: reserved
—
Bit 5: the module is in the process of obtaining an IP address
—
Bits 6...15: reserved
—
%MWr.m.ch.4
IP address (IP_ADDR):
IP_ADDR
  • During normal operation, the double word %MDr.m.c.4 contains the IP address configured or served to the module.
—
  • In No Configuration state, the double word %MDr.m.c.4 contains the default IP address of the module.
—
  • In Configuration Error detected state, the double word %MDr.m.c.4 contains the default IP address of the module.
—
  • When a duplicate IP address is detected, the double word %MDr.m.c.4 contains the served or configured duplicate IP address.
—
  • When the module is waiting for a BOOTP response, the double word %MDr.m.c.4 contains the IP address 0.0.0.0.
—