Comtrol UP DeviceMaster User Guide - Manual (Page 145)

DeviceMaster UP EtherNet/IP User Guide: 2000424 Rev. L Chapter 5. Programming the PLC - 145
lpbkExamplePlc5MsgFileSyncRS5
5.5.7. lpbkExamplePlc5MsgFileSyncRS5
This example program demonstrates a loop-back RSLogix 5 PLC program using PLC-5 Typed messages in the
Write-to-File-Synced receive method. This program initializes the produced receive and transmit sequence
numbers as well as the consumed receive sequence number at startup and then loops data via a loop-back
plug on the serial port. The data is transmitted via PLC-5 Typed Write data messages and received
automatically via a write to file command from the DeviceMaster UP. The consumed receive sequence
number is updated to match the produced receive sequence number and sent to the DeviceMaster UP to
complete the synchronization process. All sequence numbers are incremented with each message.
The following files apply:
• lpbkExamplePlc5MsgFileSyncRS5.PC5 – ladder logic in ASCII form.
• lpbkExamplePlc5MsgFileSyncRS5.SY5 – symbol definitions for RSLogix 5 Version 5.xx.xx.
• lpbkExamplePlc5MsgFileSyncRS5.SY6 – symbol definitions for RSLogix 5 Version 6.xx.xx.
5.5.8. Configure the DeviceMaster UP for the RSLogix 5 Program
The following procedure configures the DeviceMaster UP for PLC-5 and SLC PLCs. You must perform this
task before you configure and run the example RSLogix 5 program. For more information on the embedded
web pages, see
Chapter 3. Embedded Configuration Pages on Page 65.
1. Attach a loopback plug to the serial port.
2. Access the Server Configuration web page. Open PortVision DX, right-click the DeviceMaster UP and
click Webpage or open a browser and type the IP address for the DeviceMaster UP in the Address box.
3. Click Port n. Where n is the port number.
4. Set the serial port settings under Serial Configuration to the following values
5. Set the serial port settings under Serial Packet Identification to the following values.
Field Setting
Mode RS-232
Baud 57600
Parity none
Data Bits 8
Stop Bits 1
Flow Control none
DTR off
Rx Timeout Between Packets 200
Field Settings
STX RX Detect Set to one byte and Byte 1 to 2.
ETX Rx Detect Set to one byte and Byte 1 to 3.
STX Tx Append Set to one byte and Byte 1 to 2.
ETX Tx Append Set to one byte and Byte 1 to 3.
Strip Rx STX/ETX Select.
Discard Rx Packets With Errors Select.
(PLC-5/SLC) Rx MS Byte First Optionally, select.
(PLC-5/SLC) Tx MS Byte First Optionally, select.