The following is a sample configuration file specifying register mappings for two slave devices (address 3 and 7).
# Modbus RTU Slave Interface - sample configuration file
#
# Communication port definition:
CP,1,19200,None,8,2
# Trace log flag definition:
TF,Off
# Modbus register limits definition:
RL,0,65535
# Register mapping definitions:
# Slave Address: 3
#
# - the following register mapping definitions specify coils for
# slave address 3
#
RM,3,10,TEST_POINT_DOUT_1
RM,3,11,TEST_POINT_DOUT_2
RM,3,12,TEST_POINT_DOUT_3
RM,3,13,TEST_POINT_DOUT_4
#
# - the following register mapping definitions allocate a block of holding
# registers (memory type 4X). Note that the highest register reference is
# 40104 or data address 103 (zero-based). Thus, while only 4 registers are
# mapped to CIMPLICITY points, all 104 registers are accessible to the
# Modbus master.
#
RM,3,40101,TEST_POINT_AOUT_2
RM,3,40102,TEST_POINT_AOUT_3
RM,3,40103,TEST_POINT_AOUT_4
RM,3,40104,TEST_POINT_AOUT_5
# Slave Address: 7
#
# - the following register mapping definitions allocate the first two data
# addresses of each memory type for slave address 7
#
RM,7,1,TEST_POINT_DOUT_A
RM,7,2,TEST_POINT_DOUT_B
RM,7,10001,TEST_POINT_DIN_A
RM,7,10002,TEST_POINT_DIN_B
RM,7,30001,TEST_POINT_AIN_A
RM,7,30002,TEST_POINT_AIN_A
RM,7,40001,TEST_POINT_AOUT_A
RM,7,40002,TEST_POINT_AOUT_B
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Step 1. Edit the Modbus RTU Slave configuration file. |
