Omron CQM1H-SCB41 Operation Manual page 69

Changes from Previous Products
Previous Model number
products
C-series CPU SRM1
Units
CPM1
CPM1A
CPM2A/CPM2C
CQM1-CPU@@-E
C200HS-CPU@@-E
C200HX/HG/HE-
CPU@@-E
C200HW-COM@@-E
CS1-series CPU CS1G/H-CPU@@
Unit
CS1-series CS1W-SCB21/41
Serial Communi- CS1W-SCU21
cations Board or
Unit
CVM1 or CV- CVM1/CV-CPU@@
series CPU Units
CVM1 or CV- CV500-LK201
series Host Link
Unit
54
Wiring
No changes have been made
in wiring.
No changes have been made
in wiring.
No changes have been made
in wiring.
No changes have been made
in wiring.
Port 1:
The connector has been
changed from a 25-pin to a 9-
pin connector.
Port 2 set for RS-232C:
The SG signal has been
changed from pin 7 to pin 9.
Note The number of words that can be read and written per frame (i.e., the text
lengths) when using C-mode Host Link commands is different for C-series
Host Link Units and CQM1H-series Serial Communications Boards. A host
computer program previously used for C-series Host Link Units may not func-
tion correctly if used for CQM1H-series PCs. Check the host computer pro-
gram before using it and make any corrections required to handle different
frame text lengths.
Changes required for CQM1H-series product
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
CQM1H command specifications.
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
CQM1H command specifications.
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
CQM1H command specifications.
The following changes are necessary for
half-duplex transmissions that use CD.
Check the system for timing problems when
using SEND(90), RECV(98), or CMND( ) to
initiate communications from the PC or timing
problems in sending commands from the host
computer. If necessary, switch to full-duplex
transmissions.
The following changes are necessary for
full-duplex transmissions that do not use
CD.
Half-duplex 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, how-
ever, to change programs to allow for different
CQM1H command specifications.
Section 4-5
Other