Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 65)

Publication 1760-UM003A-EN-P - September 2005
Application Examples for Pico 6-21
• The maximum data length is 4 bytes. All values must be
transferred in hexadecimal format.
Overview
Analog value comparator/threshold comparator: A1 – A16
Table 6.38 Overview
Operands Meaning Read/Write Type
(hex)
Page
A1 – A16 „Analog value comparator/threshold
comparator: A1 – A16“ Read/Write 8D 21
C1 – C16 „Counter relays: C1 – C16“ Read/Write 8F 23
O1 – O4 „Operating hours counters: O1 – O4“ Read/Write 92 25
T1 – T16 „Timing relays: T1 – T16“ Read/Write 8E 27
Y1 – Y8 „Year time switch: Y1 – Y8“ Read/Write A2 30
Ц 1 – Ц 8 7-day time switch: Ц 1 – Ц 8 Read/Write A1 32
Table 6.39 Telegram Structure
Byte Meaning Value (hex), sent by
Master Slave Master Slave
Attribute ID
Read 89 –
Write 8D –
0 Response:
Read successful – C2
Write successful – C1
Command rejected –
C0
(2)
(2) Possible causes page 6-34
0 1 Type 8D 8D
1 2
Instance
(1)
(1) Pico provides 16 analog comparators A1 to A16 for use as required. These can be addressed using the instance
(0 – F).
00 – 0F 00 – 0F
2 3 Index Table 6.40 Table 6.40
3 – 6 4 – 7 Data 1 – 4 depending on
index,Table 6.41 depending on
index,Table 6.41