Counter relays: c1 – c16 – Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual User Manual
Page 67
Publication 1760-UM003A-EN-P - September 2005
Application Examples for Pico 6-23
Example:
Data 1 (Byte 4) = 0xA3, Data 2 (Byte 5) = 0x03
l Resulting 16-bit value = 03A3
hex
Meaning: HY, OS, F2, F1 are assigned a constant; I1, I2 are assigned to
a variable such as I7, I8 C2...etc., appears in the Parameter menu;
The output of the analog value comparator is active for as long as the
comparison (I1
x F1) + OS = (I2 x F2) + HY is fulfilled.
Counter relays: C1 – C16
Table 6.42 Index 01 – Control byte
FB output Data 3
Bit
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
Q1
(1)
(1) Status 1 if comparison condition is fulfilled.
Table 6.43 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 causespage 6-34
0
1
Type
8F
8F
1
2
Instance
(1)
(1) Pico provides 16 counters C1 to C16 for use as required. These can be addressed using the instance (0 – F).
00 – 0F
00 – 0F
2
3
Index
Table 6.44
Table 6.44
3 – 6
4 – 7
Data 1 – 4
depending on
index,Table 6.45
depending on
index,Table 6.45