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| Summary: |
| How do I set up Citect to talk to an SLC 5/02 and SLC 5/03 via a 1747 KE module? |
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| The SLC 5/02 has one DH-485 port while the
SLC 5/03 has 3 ports, a DH-485 and DF1 port. In order for either of
the processors to talk to Citect you need to set up a unique
station address. This can be done using a 1747-PIC (DH-485) module
which connects directly to the DH-485 port on the processor and
using Allen Bradley's APS software. You cannot use the KE500 driver
with a 1747-PIC module instead of a 1747-KE. The 1747-PIC does not
support the DF1 protocol that Citect uses, and is only useful for
the AB programming software etc.
Note : When using the APS software, you may encounter some problems such as "Duplicate Node address" and other fault or error codes if you run from a Win 95 or NT DOS box. You should boot up into DOS only when running this software. The 1747 KE module has 3 ports, a DH-485, DF1 and CONFIG port. The CONFIG port is used to configure the DF1 port and the DH-485 port. To be able to use this CONFIG port and also the DF1 port for RS 232, jumper settings on the side of the KE module need to be set. For the CONFIG port, the jumper needs to be across the first 2 vertical rows of jumper JW1. For the DF1 port the jumpers need to be across the last 2 vertical rows of the jumper JW2. To configure the DF1 port to set up the communication settings you will need to place the KE module in configuration mode. To do this remove power to the chassis and set the jumper JW4 across the first 2 jumpers horizontally on the KE module (Depending on whether your processor is Series A or B the jumper is either vertical or horizontal. In series A the jumper is horizontal). Connect a RS232 cable from the PC to the CONFIG port and start Windows Terminal or Hyperterminal set to 1200 Baud, 8 Data bits, 1 Stop bit and no parity then connect power to the chassis. A menu should appear allowing you to set the DF1 and DH-485 ports. You should set these up as below from the online help: 1747-KE Interface Module Setup The recommended hardware settings for the 1747-KE Interface Module are as follows:
NOTE: These settings are recommendations only. If you use the Express Setup procedure, these default settings are configured in your project automatically. Your hardware may support other values. If you do set the baud rate, data bits, stop bits or parity to another value, you must use Custom Setup to set the new value(s) in your project. KE Settings Follow the configuration procedure as described in the Allen-Bradley 1747-KE manual. Set the following configuration options for the 1747-KE Interface Module at your terminal:
SLC S/03 Setup Set the Online configuration of the SLC 5/03 processor to the following:
After setting up the above remove power to the chassis and place the KE module back into RUN mode by setting Jumper JW4 horizontally across the last jumpers and restore power again. Move the RS232 cable from the CONFIG port to the DF1 port on the KE module. You are now ready to set up Citect with these new settings. The forms should be as below.
The IO device address has changed from decimal for KF to octal for the KE500 protocol. The custom/express wizards in versions 3.X and 4.X give a contrary indication. If talking to the SLC 5/03 directly via the DF1 port then the address will just be 1 in the IO DEVICES form. You will also need to set up the processor using the APS software and the 1747-PIC (DH-485) module to configure the Baud Rate, Data Bits, Stop Bit and Parity and to place the DF1 port in Half-Duplex. Citect will not communicate in Full-Duplex mode. |
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