Omron CPM2C User Manual

251
Data Memory (DM) Allocation Section 7-4
Note When command group 4 is selected, words with offsets +4 through +9 will be
cleared to 0000.
Response Monitor Area (Offset: +0)
The structure of the response monitor area is the same whether SYSWAY or
CompoWay/F communications are used. See Response Monitor Area on
page 246 for details on the response monitor area.
Read Data
Each two-word value read from the Digital Panel Meter has a value ranging
from 0000 0000 to FFFF FFFF and is 2’s complement signed binary data. The
words will contain 0000 0000 if a communications error occurred. The follow-
ing example shows the contents of the read data area when a communica-
tions error occurred while reading the display value in command group 1.
• Response Monitor Area: Contains the error code.
• Display value: Contains 0000 0000.
• Status: Contains 0000.
Note The decimal point position has to be managed by the user since the Digital
Panel Meter’s decimal point position is not transferred in SYSWAY (X format)
communications.
Status (Offset: +3, +6, and +9)
The read data area’s +3, +6, and +9 offset words contain the status when
reading the display value, peak hold value, or bottom hold value, respectively.
Refer to the Digital Panel Meter’s Operation Manual for details on the status
values.
Write Data Area:
Temperature Controllers
(9 words)
The following data will be written to a Temperature Controller when SYSWAY
has been specified as the component communications protocol.
The starting address of the “write data area” is specified in the “control data
area.” Select any one of the 5 command groups to specify which SVs will be
+3 Display value status Read Read Read Read Read
+4 and +5 Peak hold --- Read Read --- Read
+6 Peak hold status --- Read Read --- Read
+7 and +8 Bottom hold --- Read Read --- Read
+9 Bottom hold status --- Read Read --- Read
+10 and +11 Comparison value (HH) --- --- --- Read Read
+12 and +13 Comparison value (H) --- --- --- Read Read
+14 and +15 Comparison value (L) --- --- --- Read Read
+16 and +17 Comparison value (LL) --- --- --- Read Read
Offset Data Command group
1234*5
Offsets:
+1, 4, 7, 10, 12, 14, 16
16
3
16
2
16
1
16
0
Read data lower byte (Binary, 2’s complement)
0000 to FFFF Hex
Offsets:
+2, 5, 8, 11, 13, 15, 17
16
3
16
2
16
1
16
0
Read data upper byte (Binary, 2’s complement)
0000 to FFFF Hex

Omron CPM2C Specifications

General

Brand	Omron
Model	CPM2C
Category	Controller
Language	English