When using the DF1 port on the SLC-503,504 the DF1 port must be setup correctly using the SL-500 APS programming software. Set the following parameters:
- Baud Rate set to suit the baud rate of the MicroScan interface.
- Set the Error check to BCC.
- Set the Parity to NONE.
(In the APS software, Goto Processor Functions, then Channel config, then Channel 0 System Config).
CONNECTION CABLE (no handshaking)
|IBM PC DB25 connector||SLC DF1 port DB 9 connector|
|Shield (Metal case)||Shield (Metal case)|
|Connect 4-6 at PLC end|
MAXIMUM LENGTH = 15 Metres.
To test the cable, use the APS software, and connect to the PLC using the Full Duplex DF-1 driver.
The data access in the SLC 500 is limited to the following data files:
To read/write data out of the other SLC files areas, a common data area set up as integers or bits must be used and a part of the PLC ladder logic used to perform a block transfer to the appropriate file area.