Westermo RM-115S - Manual (Page 21)

115S Serial I/O Module User Manual
man_115S_1.14.docx Page 21
3 Configuration
The 115S serial expansion modules can be configured as expansion I/O for the ELPRO
radio modules. When configured like this the module communicates using standard
ELPRO protocol which works on a Change of State concept like all other ELPRO radio
modules.
The module can also be configured as a Standard MODBUS Slave device which operates
by responding to poll messages from a MODBUS Master (DCS, SCADA, PLC, Etc).
3.1 ELPRO Expansion I/O configuration.
Use the ELPRO Configuration utility to configure the 115S module to communicate to
105U and 905U radio modules.
- Ensure the Address switches are set to “00” for ELPRO protocol mode. Refer to
section 2.1.2 for details on setting the address switches.
The ELPRO Configuration utility allows you to configure systems consisting of a
mixture of ELPRO Module types.
The software can be downloaded from the ELPRO web-site, or from the ELPRO Product
CD included with your device.
115S expansion I/O module can only be added to the software via the ‘Serial Units’
branch of a radio module, see Figure 3.1 below.
If using the module as a standalone serial device (without radios) you will need to add a
dummy radio module to the software and then add all serial module to this dummy
modules ‘Serial Units’ branch.
- Refer to your radio module user manual for an explanation on how to create the
radio module configuration.
Once you have created the new radio module configuration, or a radio module was
already present you can add a serial module. Select the radio module that you want to
connect the 115S serial module to, and select the “Serial Units” item. Select “Add a new
Serial Unit” to create the new configuration, or select “Load a New Serial Unit” to load
the configuration from an existing module. See Figure 3-1 & 3.2 below.