Omron CPM2C Operation Manual page 274

Data Memory (DM) Allocation
Write Data Area:
Temperature Controllers
(9 words)
Offset
+3 Display value status
+4 and +5 Peak hold
+6 Peak hold status
+7 and +8 Bottom hold
+9 Bottom hold status
+10 and +11 Comparison value (HH) ---
+12 and +13 Comparison value (H)
+14 and +15 Comparison value (L)
+16 and +17 Comparison value (LL)
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
Offsets:
+1, 4, 7, 10, 12, 14, 16
Offsets:
+2, 5, 8, 11, 13, 15, 17
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:
• Status:
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.
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
Data
1
Read Read
--- Read
--- Read
--- Read
--- Read
---
--- ---
--- ---
--- ---
3 2
16 16
Read data lower byte (Binary, 2's complement)
0000 to FFFF Hex
3 2
16 16
Read data upper byte (Binary, 2's complement)
0000 to FFFF Hex
Contains 0000 0000.
Contains 0000.
Section 7-4
Command group
2 3 4*
Read Read Read
Read --- Read
Read --- Read
Read --- Read
Read --- Read
--- Read Read
--- Read Read
--- Read Read
--- Read Read
1 0
16 16
1 0
16 16
5
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