Omron NT31 Setup Manual page 168

Setting Conditions for Communications with Host by Using Memory Switches
Setting Item
Comm. A Method Set the communication method used at serial
port A. Depending on the communication meth-
od, further communication condition settings
may be necessary.
Comm. B Select Set whether serial port B is to be used for
RS-232C or RS-422A communication.
Comm. B Method Set the communication method used at serial
port B. Depending on the communication meth-
od, further communication condition settings
may be necessary.
Possible Combinations
of Communication
Method Settings
156
Port Communication Method/Communication Type Settings
Function
Communication Condition Settings for The Host Link Method
Setting Item
Comm. Speed Sets the communications speed
(for host link only) for communications with the host.
Communication Condition Settings for The NT link (1:1) Method
No further communication conditions need to be set.
Communication Conditions Settings for The NT Link (1:N) Method
Setting Item
Unit No. Set the unit number of the
(for NT link (1:N) NT31/NT31C.
only)
Comm. Speed Sets the communications speed
for communications with the host.
Setting The Conditions for Communications with The Memory Link Meth-
od
Setting Item
Data bits Set the data bits length.
Stop bits Set the stop bits length.
Parity Set the parity.
Comm. Speed Set the communications speed
for communications with the host.
Flow control Set the flow control and its meth-
od.
Response Set whether the response is car-
ried out for normal process of
communication command or not.
The combinations of communication methods that can be set with the
NT31/NT31C are indicated in the table below. Combinations other than these
listed below cannot be set (when using a system for multi-venders, refer to the
PLC Connection Manual (V042-E1-j) or NT31/631 Multi Vendor Connection
Manual (V060-E1-j).
Setting Options
A system program for OMRON
model.
None/Host Link/NT Link (1:1)/
NT Link (1:N) (standard or high-
speed)/Bar-Code Reader
Memory link
RS-232C/RS-422A
A system program for OMRON
model.
None/Host Link/NT Link (1:1)/
NT Link (1:N) (standard or high-
speed)
Memory link
Function Setting Op-
9600 bps/
19200 bps
Function Setting Op-
0 to 7
Standard or
high-speed
Function Setting Op-
7, 8 bits
1, 2 bits
None, even,
odd
1200, 2400,
4800, 9600,
19200, 38400
bps
None, RS/CS,
XON/XOFF
Yes, No
Section 6-7
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