System information

General Reference Guide IO Servers Configuration
RG-001-0-EN ver 1.5 eWON® - 20/03/2009 - ©ACT'L sa Page 100
5.6 DF1 IO Server
5.6.1 Introduction
The eWON serial link can be configured as a DF1 INTERFACE. When the Baud Rate in the DF1 IO Server is set to a value different than
"Disabled", the DF1 module in the eWON will be enabled.
This DF1 module provides 3 features:
• Poll items in SLC50x and PLC5 controllers using PCCC requests.
• Forward PCCC requests from EIP (TCP/IP) to DF1 bus and thus, acts as an adapter between EIP and DF1.
Thanks to that feature, it is possible to access a PLC connected to the eWON’s DF1 link by connecting RSLogix 500 using RSLinx TCP driver
started with the eWON IP address as destination.
• Poll DH+ device using ControlLogix gateway
The DF1 IO Server must be configured in Full Duplex mode (eWON serial link must be configured in RS232 mode, with dipswitch).
note: Please check in the “Rockwell compatibility matrix” on page 204 if your device is supported.
5.6.2 Setup
5.6.2.1 Communication Setup
Figure 81: DF1 communications setup
If more than one Serial port are available, you must choose which COM the DF1 request will be sent to.
The following parameters can be modified:
Baud Rate Select the Baudrate from 1200 to 38400 Bauds
Parity The parity to apply: none / odd / even
Stop Bit(s) Number of stop bits
Frame Error Detection Cyclic Redundancy Check (CRC) or Block Check Character (BCC)
HW mode Full Duplex no handshaking or Half duplex
Master Response Timeout
Maximum time the eWON will wait for a valid message from the DF1 master. This value can
be critical for a correct operation, depending on the responsiveness of the master. A value of
1000 should be selected to guarantee correct operations
Rx message timeout (MSEC) Maximum time between a request is posted and the response is received
Tx message timeout (MSEC) Maximum time for a request to be sent
Table 73: DF1 communication setup controls