4-4
Section
SRM1(-V2) Communications Functions
280
The words used for the 1:1 PC Link are as shown below.
LR00
LR07
LR08
LR00
LR07
LR08
LR15
Master
Area for writing
Area for reading
Slave
Area for writing
Area for reading
Write data
Read data
Read data
Write data
LR15
A 1:1 PC Link is possible only with the SRM1-C02-V1/V2 PCs, which are
equipped with an RS-232C port.
Only the 16 LR words from LR 00 to LR 15 can be linked in the SRM1, so use only
those 16 words in the CQM1 or C200HS when making a 1:1 PC Link with one of
those PCs. A 1:1 PC Link cannot be made to an SRM1 PC using LR 16 through
LR 63 in the CQM1 or C200HS.
Cable Connections
Refer to the
SRM1 Master Control Units Operation Manual
for information on
cable connections in a 1:1 PC Link.
PC Setup Settings
When an SRM1(-V2) is used in a 1:1 PC Link, make the following PC Setup set-
tings from a Programming Device.
Word
Bit
Function
Setting
(Master)
Setting
(Slave)
DM 6645
00 to 03
Port settings
1
00: Standard (1 start bit, 7-bit data, 2 stop bits, even parity, 9,600 bps)
01: Settings in DM 6651
00 or 01
00 or 01
04 to 07
CTS Control settings
0: Disable
1: Set
0
0
08 to 11
When using a 1:1 PC Link: Sets the link words for 1:1 PC Link.
0: LR 00 to LR 15
Not 0: Disable
When using a 1:N NT Link: Sets the maximum PT node number.
1 to 7
0
0
12 to 15
Communications mode
1
0: Host Link; 1: No-protocol; 2: 1:1 PC Link Slave; 3: 1:1 PC Link Master; 4:
1:1 NT Link; 5: 1:N NT Link
3
2
Note
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 1:1 PC 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:
Host Link
Communications format:
Standard settings
(1 start bit, 7-bit data; 2 stop bits, even parity,
9,600 bps)
Transmission delay:
No
Node number:
00
Limitations of 1:1 PC Links
with a SRM1(-V2)