ProSoft Technology MVI71-MCM - Manual (Page 20)

MVI71-MCM ♦ PLC Platform Installing and Configuring the Module
Modbus Communication Module
Page 20 of 111 ProSoft Technology, Inc.
December 28, 2007
7
The sample ladder uses the following data files:
B3: Auxiliary Bits
N9: Status Data
N10:Configuration Data
N11: Port 1 Modbus Commands (if Port 1 is configured as a Modbus Master)
N12: Port 2 Modbus Commands (if Port 2 is configured as a Modbus Master)
N13: Pass-Thru
B14: Pass-Thru Bit (used to bit write commands when using pass-thru)
N15: Block Transfer Read Data
N16: Block Transfer Write Data
N50: Event Commands
8 Edit the Configuration Data to match your application. The configuration data
contains the port configuration and block transfer parameters. In the sample
ladder the Configuration Data is located at data file N10 and it is structured
according to the table listed below. Use this table to help you configure the
module:
Address Description Value
N10:0 Write Data Start
N10:1 Write Data Count
N10:2 Read Data Start
N10:3 Read Data Count
N10:4 Backplane Fail Count
N10:5 Error Start Address
N10:6 Port 1 Enable
N10:7 Port 1 Type
N10:8 Port 1 Float Flag
N10:9 Port 1 Float Start
N10:10 Port 1 Float Offset
N10:11 Port 1 Protocol
N10:12 Port 1 Baud Rate
N10:13 Port 1 Parity
N10:14 Port 1 Data Bits
N10:15 Port 1 Stop Bits
N10:16 Port 1 RTS ON
N10:17 Port 1 RTS OFF
N10:18 Port 1 Minimum Response
N10:19 Port 1 Use CTS
N10:20 Port 1 Slave ID
N10:21 Port 1 Bit Input Offset
N10:22 Port 1 Word Input Offset
N10:23 Port 1 Bit Output Offset
N10:24 Port 1 Holding Register Offset
N10:25 Port 1 Command Count
N10:26 Port 1 Minimum Command Delay