4-2
Section
CPM1/CPM1A Communications Functions
230
The following diagram shows a 1:1 PC Link between two CPM1s PCs. Refer to
the
CPM1A Operation Manual
for the corresponding information on the CPM1A.
CPM1 CPU Unit
RS-232C Adapter
CPM1 CPU Unit
RS-232C Cable
RS-232C Adapter
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
Only the 16 LR words from LR 00 to LR 15 can be linked in the CPM1/CPM1A, 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 a CPM1/CPM1A PC
using LR 16 through LR 63 in the CQM1, C200HX/HG/HE, or C200HS.
PC Setup Settings
The settings relating to 1:1 PC Link communications must be set as shown in the
following table.
Word
Bit
Function
Setting
(Master)
Setting
(Slave)
DM 6650
00 to 07
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
(Any val-
ue is OK)
00
(Any val-
ue is OK)
08 to 11
Link area for 1:1 PC Link via peripheral port
0: LR 00 to LR 15
0
0
(Any val-
ue is OK)
12 to 15
Communications mode
1
0: Host Link; 2: 1:1 PC Link Slave; 3: 1:1 PC Link Master; 4: 1:1 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. For information on CPM1/CPM1A 1:1 PC Link connections and wiring dia-
grams refer to
3-4-7 Host Link Connections
in the
CPM1 Operation Manual
or
CPM1A Operation Manual
. For the SRM1(-V2) refer to
3-4-4 RS-232C
Port Wiring
in the
SRM1 Master Control Unit Operation Manual
.
4. 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
CPM1/CPM1A One-to-one
PC Links
Limitations of 1:1 PC Links
with a CPM1/CPM1A
Содержание SRM1 - PROGRAMING 02-2001
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