WAGO-I/O-System 750
Appendix 163
750-370 PROFINET IO Fieldbus Coupler
Manual
Version 2.0.0
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 is divided into two module types.
Table 79: 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, 750-633,
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.
The group of up/down counter is divided into the following submodule types.
Table 80: Submodule Types and Data Lengths – Up/Down Counter
PNIO module type
Process data length [byte]
Telegram
allocation [byte]
PNIO submodule type
Data type
Input (I-PI) Output (O-PI) Input
Output
1(2)CNT
1CNT
{Unsigned8,
Unsigned8,
Unsigned32}
6
6
8
8
2CNT
{Unsigned8,
Unsigned8,
Unsigned16[2]}
6
6
8
8
2CNT
2CNT
{Unsigned8,
Unsigned16}
6
6
8
8
