​Molex SST-ESR2-CLX-RLL and SST-SR4-CLX-RLL communication modules

General configuration file: Add 1756-MODULE, set communication format (such as Data INT with Status), assembly instance and size for input/output/configuration/status (such as input instance 1, size 250).

Initialization and Address Mode Switching: Initialize the module through Console's PCInit; The database address mode can be switched in Configuration Manager. The default mode maps the CLX table from 0-699, and the extended mode allows customization of input/output/status addresses and lengths (firmware 2.10.2 or above is required).

（2） Typical Configuration Example

Modbus TCP configuration: ESR2 can be configured as a server (select Modbus TCP protocol), client (add Modbus device, set IP address), or both client and server, creating cyclic functions (set cycle, data volume, device address, database offset).

Modbus serial configuration: Both modules can be configured as slaves (select Modbus RTU/ASCII Slave) or hosts (add Modbus slave devices, set slave numbers), supporting multi-channel master-slave hybrid configuration.

Siemens S7/S5 configuration: Only supported by ESR2, can be configured as a server/client, adding devices such as S7 300/400/1200, creating cyclic functions to read and write variables such as DBx.DWx.

Compliance and Support

（1） Compliance certification

Compliant with CE/EU, RoHS, FM (Class 1 Div 2 Groups A-D), FCC, Korean certification, RINA certification, electrical safety complies with EN 61010-1, EMC complies with EN 61000-6-2/4.

（2） Warranty and Support

Warranty: According to Molex standard warranty terms, please refer to Appendix F of the document for details.

Technical Support: You can contact Molex Canada at 216 Bathurst Drive, Waterloo, Ontario, Canada N2V 2L7; Phone: 1.775.782.3611 or 1.800.227.5514 (US only), or visit the official website Bently.com for patent information and the latest documents.