WAGO-I/O-SYSTEM 750
Appendix 163
750-375 PROFINET IO advanced Fieldbus Coupler
Manual
Version 1.1.0
14.1.6
Specialty Modules
The module/submodule types are listed for the special-purpose modules and the
substitute I/O modules assigned in the tables below.
The subsequent tables for the submodule types and data lengths list the number of
data bytes provided in the respective process image for the individual submodules.
The respective number of bytes of the telegrams in the send and receive direction
is also specified as input IOD
IOC (provider) and output IOC
IOD
(consumer).
14.1.6.1 Up/Down Counter
The group of up/down counters has two module types divided into three
submodule types.
Table 85: Module types – Up/Down Counter
Module type
Description
Substitute I/O modules
1(2)CNT
1(2)-Channel Up/Down Counter,
32(16) bits input and output data plus
control byte and status byte per signal
channel, Access to the register structure
via cyclic data exchange
75x-404, 75x-633,
plus all variations
2CNT
2- Channel Up/Down Counter,
16 bits input and output data plus control
byte and status byte per signal channel,
Access to the register structure via cyclic
data exchange
75x-638
For up/down counters, provider and consumer status (IOPS, IOCS) of the input or
output information are exchanged between the IO controller and IO device in both
directions.
Table 86: Submodule types and data lengths – Up/Down Counter
PNIO module type
Process data length [byte]/
allocation [bit]
Telegram
allocation [byte]
PNIO submodule type
Data type
Input (I-PI) Output (O-PI) Input
Output
1(2)CNT
{UINT8, UINT8,
UINT32} I/O
{Unsigned8,
Unsigned8,
Unsigned32}
6
6
8
8
{UINT8, UINT8,
UINT16[2]} I/O
{Unsigned8,
Unsigned8,
Unsigned16[2]}
6
6
8
8
2CNT
{UINT8, UINT16}[2] I/O
{Unsigned8,
Unsigned16}
6
6
8
8
