WAGO I/O SYSTEM 750 XTR
Appendix 167
750-333/040-000 FC PROFIBUS G2 12MBd XTR
Manual
Version 1.4.0
12.2.7
Up/Down Counters
The PI configurations of the up/down counters are divided into the following
module types:
Table 106: Up/down Counters
– Module Types
PBDP module type
Description
Proxy I/O Modules
1CNT
Up/Down counter
75x-404, 750-633
2CNT
2-channel up/down counter
75x-638
Up/down counters pass the counter status of the input channels to the DP master
and receive information about setting the counter status. For the 75x-404, two
output channels can also be switched via the control byte.
The following table lists the number of bytes reserved for the modules in the
respective process image (PI).
Table 107: Up/down Counters
– Number of Bytes
I/O Modules
PBDP module type
Proxy (PBDP module type)
Data length
[Byte]
Configuration identifier
Data type
Inst.
I
O
hex
dec
1CNT
6
6
0xF2
242
UINT8[2], UINT32
(UINT8[2], UINT16[2])
1
2CNT
6
6
0xF2
242
UINT8, UINT16
2
The following table describes the process images of the individual up/down
counter module types.
Table 108: Up/down Counters
– Process Image Information
PBDP module type
PI
Offset
[Byte]
Bit/byte allocation
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1CNT
I
0
PD
RA
0
Status 0 / Register RES
Channel 0 / Table 0
1
2
Counter value
Byte 0
5
(Byte 3
5
)
Register data RD
Table 0, LB
5
3
Counter value
Byte 1 (Byte 2
5
)
Register data RD
Table 0, HB
5
4
Counter value
Byte 2 (Byte 1
5
)
Register data RD
Table 0, HB
4
5
Counter value
Byte 3 (Byte 0
5
)
Register data RD
Table 0, LB
4
O
0
PD
RA
0
RW
Control 0 / Register REQ
Channel 0 / Table 0
1
2
Counter set value
Byte 0 (Byte 3
5
)
Register data WR
Table 0, LB
5
3
Counter set value
Byte 1 (Byte 2
5
)
Register data WR
Table 0, HB
5
4
Counter set value
Byte 2 (Byte 1
5
)
Register data WR
Table 0, HB
4
5
Counter set value
Byte 3 (Byte 0
5
)
Register data WR
Table 0, LB
4
