How to install the Rockwell Automation 1757-SRM (B-series) module?

Green flash (<1 second): Power on, partner module is determining the main state;

Evergreen: The chassis is in the main engine state.

（2） Fault type and handling

Fault classification:

Minor recoverable faults: do not affect redundant operations, modules may clear on their own;

Minor unrecoverable fault: does not affect redundant operations, but has no recovery mechanism;

Serious recoverable faults: affecting redundant operations (possibly not immediate), such as backup module failures that may affect control in the event of a host failure;

Serious unrecoverable fault: fatal fault, redundant operation stopped, possible switching, module replacement required.

Common faults and solutions:

|Fault code/display | Fault description | Handling measures|

|CFG LOG ERR | Configuration log error | No action required|

|COMM RSRC ERR | Communication resource error | Reset 1757-SRM module|

|COMM ERR PRT2 | Port 2 communication error (inter module link) | Check or replace 1757-SRCxxx fiber optic cable|

|FLSH UPDT REQ | Flash update required | Use corresponding firmware version to upgrade module|

|HDW ERR | Hardware Failure | Replace 1757-SRM Module|

|WDOG FAIL | Watchdog task status check failed | Replace 1757-SRM module|

Recovery instruction: The module displays "RPLC MOD" and needs to be replaced, "RSET MOD" needs to be reset, "REMV MOD" needs to be removed, and "SEAT MOD" needs to be reinserted.

Technical specifications

（1） Module core parameters

Category parameter values

Backplane current 3.3V DC 0.75A

5.1V dc 1.0A

24V dc 0.160A

Dimensions (height x width x depth) Standard ControlLogix chassis (2 slots wide) 14.5 x 7 x 14 centimeters (5.71 x 2.76 x 5.51 inches)

Weight - Approximately 0.452 kilograms (14.53 ounces)

Shell Protection Level - None (Open)

Temperature code IEC T4

North American T4A

Maximum power consumption -11.28W

Maximum heat dissipation -38.49 BTU/hour

Isolation voltage relay terminal to system for a continuous 30V, basic insulation type (853V AC test for 60 seconds)

（2） Redundant cable parameters

Parameter values

Connector SC type (fiber optic)

Cable type 62.5/125 micron multimode fiber

1 channel (sending and receiving fiber optic)

Wavelength 1300nm

（3） User relay terminal parameters

Parameter values

Power requirement: 11-30V DC; Typical current of 270mA at 24V DC (must comply with UL Class 2 or CE SELV/PELV standards)

Guiding load rated 30V DC Class 2/SELV, 100mA

Wiring category (Port 1) 3

Suitable for solid or stranded shielded copper wires of 0.3-2.1 square millimeters (22-14 AWG), rated temperature ≥ 75 ℃ (167 ℉), with a maximum insulation layer of 1.2 millimeters (3/64 inches)

Terminal block torque 0.6-0.8 Nm (5-7 pounds inches)

（4） Environmental specifications

Parameter values

Working temperature 0-60 ℃ (32-140 ℉) (compliant with IEC 60068-2-1, 60068-2-2, 60068-2-14 standards)

Storage temperature -40-85 ℃ (-40-185 ℉) (compliant with IEC 60068-2-1, 60068-2-2, 60068-2-14 standards)

Relative humidity 5% -95% (non condensing) (in accordance with IEC 60068-2-30 standard)

Vibration (working) 2g @ 10-500Hz (compliant with IEC 60068-2-6 standard)

50g impact (non working) (compliant with IEC 60068-2-27 standard)

Impact (working) 30g (compliant with IEC 60068-2-27 standard)

Radiation emission complies with CISPR 11:1 Group A

Electrostatic immunity: 6kV for contact discharge and 8kV for air discharge (in accordance with IEC 61000-4-2 standard)

（5） Certification qualifications

The module is approved by UL (Industrial Control Equipment, document E65584) and CSA (Process Control Equipment, document LR54689C); Multiple certifications such as LR69960C, FM, CE (compliant with the 2004/108/EC EMC Directive), C-Tick (compliant with the Australian Radio Communications Act), EEx (compliant with the 94/9/EC ATEX Directive), T Ü V (functional safety certification, up to SIL 2), etc. are applicable to compliance requirements in different regions and scenarios.