Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 88)

Publication 1760-UM003A-EN-P - September 2005
7-8 Pico GFX Control Commands
Example
A voltage signal is present at analog input 1. The required telegrams
for reading the analog value are as follows:
Byte 4 – Data 1 (Low Byte): D9
hex
Byte 5 – Data 2 (High Byte): 02
hex
l corresponding 16-bit value: 02D9
hex
= 729 (7.29 V)
0 1 Len 02 02
1 2 Type 02 02
2 3 Index
01 – 04
(1)
01 – 04
(1)
3 4 Data 1 (Low Byte) 00 a example on
page 7-8
4 5 Data 2 (High Byte) 00
5 – 6 6 – 7 Data 3 – 4 00 00
(1) 01 = Analog input I7
02 = Analog input I8
03 = Analog input I11
04 = Analog input I12
Table 6.77
Byte Meaning Value (hex), sent by
Master Slave Master Slave
Attribute ID: Read 91 –
0 Response: Read
successful – C2
0 1 Len 02 02
1 2 Type 02 02
2 3 Index
01
(1)
(1) 01 = Analog input 1
01
1
3 4 Data 1 00 D9
4 5 Data 2 00 02
5 6 Data 3 00 00
6 7 Data 4 00 00
Table 6.76 Telegram Structure
Byte Meaning Value (hex), sent by
Master Slave Master Slave