Omron CJ1G-CPU series, Programming Manual

Page: 370 / 383

349
Appendix B
Changes from Previous Host Link Systems
There are differences between Host Link Systems created using the CS/CJ-series Serial Communications
Boards (CS Series only) and Unit in comparison to Host Link Systems created with Host Link Units and CPU
Units in other PLC product series. These differences are described in this sections.
RS-232C Ports
Take the following differences into consideration when changing from an existing Host Link System to one
using an RS-232C port on a CS/CJ-series CPU Unit, Serial Communications Boards (CS Series only), or
Serial Communications Unit (CS1H/G-CPU
@@ RS-232C port, CS1W-SCU21 ports, CS1W-SCB21 ports,
CS1W-SCB41 port 1, or CJ1W-SCU41 port 2).
Previous
products Model number Changes required for CS/CJ-series product
Wiring Other
C-series Host
Link Units 3G2A5-LK201-E
C500-LK203
3G2A6-LK201-E
The connector has been
changed from a 25-pin to a 9-
pin connector.
The CS/CJ-series products
do not support the ST1, ST2,
and RT signals and wiring
them is not required.
The following changes are necessary for
systems that sync with ST1, ST2, and RT.
Synchronized transfers will no longer be possi-
ble.
Full-duplex transmissions will be possible with
the CS/CJ-series product, but the host com-
puter’s communications program, hardware, or
both will need to be altered.
The following changes are necessary for
systems that did not sync with ST1, ST2,
and RT.
It may be possible to use the host computer
programs without alteration as long as the
same communications settings (e.g., baud rate)
are used. It may be necessary, however, to
change programs to allow for different text
lengths in frames or different CS/CJ command
specifications. (See note.)
C200H-LK201 The connector has been
changed from a 25-pin to a 9-
pin connector. It may be possible to use the host computer
programs without alteration as long as the
same communications settings (e.g., baud rate)
are used. It may be necessary, however, to
change programs to allow for different text
lengths in frames or different CS/CJ command
specifications. (See note.)
C-series CPU
Units SRM1
CPM1
CPM1A
CQM1-CPU
@@
-E
C200HS-CPU @@ -E
C200HX/HG/HE-
CPU
@@
-E
C200HW-COM @@ -E
No changes have been made
in wiring. It may be possible to use the host computer
programs without alteration as long as the
same communications settings (e.g., baud rate)
are used. It may be necessary, however, to
change programs to allow for different CS/CJ
command specifications.