40
CVM1 and CV-series PCs
Section 6-1
6-1
CVM1 and CV
-
series PCs
The programming used in this section provides an example of writing and
reading alarm 1 temperatures using message communications for all the
E5ZE
’
s control points from a ladder program in a CVM1 Programmable Con-
troller.
Procedure
1,2,3...
1.
Transmit the program to the CVM1 PC.
2.
Set the CVM1 PC to RUN or MONITOR Mode.
3.
Set the alarm 1 temperature data to be written in order in words DM00020
to DM00027 for all control points (0 to 7). (This program will set the tem-
perature to 100.0
°
C (03E8) for all control points.)
4.
Writing will be executed when bit CIO 013100 is turned ON at the CVM1
PC.
5.
When writing is completed, CIO 013100 will turn OFF.
6.
When the bit CIO 013101 is turned ON at the CVM1 PC, reading will be
executed.
7.
When reading is completed, CIO 013101 will turn OFF.
8.
The data that has been read will be stored in order in words DM00060 to
DM00067 for all control points (0 to 7).
9.
If an attempt is made to execute reading and writing simultaneously, only
writing will be executed.
When bit CIO 10001 is ON, writing is performed, and when bit CIO 10006 is
ON, reading is performed. If message communications are not executed prop-
erly, the same instructions will be executed.
Program Application Conditions
•
Set the CVM1
-
DRM21
-
EV1 CompoBus/D Master Unit as a CPU Bus Unit
to unit number 0.
•
Use a CVM1
-
CPU11
-
EV2 CPU Unit.
• Set the communications parameters as follows:
Baud rate: 500 kbps
CVM1
-
DRM21
-
EV1 node address: 00
E5ZE node address: 32
Refer to the DeviceNet (CompoBus/D) Operation Manual (Cat. No. W267)
for details on using the CMND(194) instruction.
• E5ZE IN start address: CIO 2032 (This address is used only with fixed allo-
cations.)
