And figure 1.8, Figure 1.8 – Rockwell Automation 1746-BAS-T SLC 500 Basic Basic-T Modules User Manual
Page 24
Publication 1746-UM004B-EN-P - December 2005
1-12 Module and Development Software Overview
Figure 1.8 shows the module using DF1 to control communications
with a modem.
In this configuration, the module is interfaced with a DH485 network
through a peer-to-peer communication interface with full-duplex, DF1
protocol.
Figure 1.8 Full-duplex, DF1 Protocol Configuration
The modems in this configuration may be dial-up. If the modems are
dial-up, the BASIC program may initiate dial-up and then switch port
PRT2 to DF1 protocol when connection is made to the 1747-KE
DH485 communication interface module. Port PRT2 on your module
must be configured as having DF1 protocol.
See Chapter 3 for additional information on port configuration.
The 1747-C13 cable acts only as a communication link and does not
carry 24V dc power. The 1747-C10 or 1747-C11 cable carries 24V dc
(1)
The 1747-KE module can be replaced by the 1770-KF3 DH485 communication interface module. The KF3 is a standalone version of the KE module.
Personal Computer with BASIC
Development Software
SLC 500
Controller with
BASIC or
BASIC-T Module
DH485 Communication
Cable
(Belden 9842)
SLC 500
Controller
Modem
1747-C11 Cable
1747-C13 Cable
Link Coupler
1747-AIC
SLC 500
Controller
with 1747-KE
Module
(1)
1747-C11 Cable
Modem
Link Coupler
1747-AIC
Interface/Converter
RS-232 to RS-485
Catalog Number
1747-PIC