ProSoft Technology MVI46-MCM - Manual (Page 82)

Reference MVI46-MCM ♦ SLC Platform
User Manual Modbus Communication Module
Page 82 of 108 ProSoft Technology, Inc.
March 29, 2011
5.5 MVI46-MCM Remote Configuration
Remote configuration data can be received from other nodes on the network that
can control the MVI46-MCM module. Specific values are written to regions of this
block to change the module’s configuration parameters. Currently, the module is
programmed to handle the receipt of the following requests: write configuration to
processor, warm boot and cold boot.
The remote node controls the module by writing one of the following values to
register 7800 (Modbus address 47801):
9997 Write configuration in database to the processor and warm boot the
module.
9998 Warm boot the module.
9999 Cold boot the module.
The control register is cleared (a value of 0) after the operation is executed with
the exception of the 9997 command. If the module fails to successfully transfer
the configuration to the processor, an error code will be returned in the control
register as follows:
0 No error, transfer successful
-1 Error transferring general configuration information.
Ladder logic must handle the 9997 command. No ladder logic is required when
using the warm or cold boot commands.