Srm1 One-To-One Link Communications - Omron CPM1 Programming Manual

Communications Functions
PC Setup Settings
Word Bit
DM 6650 00 to 07 Port settings
00: Standard (1 start bit, 7-bit data, even parity, 2 stop bits, 9,600 bps)
01: Settings in DM 6651
08 to 11 Link area for one-to-one PC link via peripheral port
0: LR 00 to LR 15
12 to 15 Communications mode
0: Host link; 2: 1-to-1 PC link (slave); 3: 1-to-1 PC link (master); 4: NT link
Note

1-9-10 SRM1 One-to-one Link Communications

One-to-one SRM1 Links
LR00
Write data
LR07
LR08
Read data
LR15
106
The settings relating to NT link PC communications must be set as shown in
the following table.
Function
1
1
1. If an improper setting is used, a non-fatal error will occur, AR 1302 will be
turned ON, and the default setting (0 or 00) will be used.
2. For information on the NT link settings for another OMRON PC, refer to that
PC's Operation Manual.
3. If an out-of-range value is set, the following communications conditions will
result. In that case, reset the value so that it is within the permissible range.
Communications mode:
Communications format:
Transmission delay:
Node number:
In a one-to-one link, a SRM1 is linked to another SRM1, CPM1/CPM1A, a
CQM1, or a C200HS through an RS-232C Adapter and standard RS-232C
cable. One of the PCs will serve as the master and the other as the slave. The
one-to-one link can connect up to 256 bits (LR 0000 to LR 1515) in the two
PCs.
The following diagram shows a one-to-one link between two SRM1s.
SRM1
RS-232C Port
The words used for the one-to-one link are as shown below.
Master
Area for writing
Area for reading
Host Link
Standard settings
(1 start bit, 7-bit data; even parity, 2 stop bits,
9,600 bps)
No
00
SRM1
Slave
LR00
Read data
Area for reading
LR07
LR08
Area for writing
Write data
LR15
Section 1-9
Setting
00
(Any value
is OK)
0
(Any value
is OK)
4
RS-232C Port