358 I/O Modules
WAGO-I/O-SYSTEM 750
750-880, 750-880/025-000 ETHERNET Programmable Fieldbus Controller
Manual
Version 1.0.1
750-635,
753-635
The above Digital Pulse Interface module has a total of 4 bytes of user data in
both the Input and Output Process Image (3 bytes of module data and 1 byte of
control/status). The following table illustrates the Input and Output Process
Image, which have 2 words mapped into each image. Word alignment is applied.
Table 399: Incremental Encoder Interface Modules 750-635, 750-635
Input and Output Process Image
Byte Destination
Instance
High Byte
Low Byte
Description
D0 C0/S0
Data
byte
Control/status
byte
n
D2 D1 Data
bytes
The specialty modules represent 1x4 bytes input and output data and seize 1
Instance in Class (0x67) and 1 Instance in Class (0x68).
13.3.5.8 DC-Drive Controller
750-636
The DC-Drive Controller maps 6 bytes into both the input and output process
image. The data sent and received are stored in up to 4 input and output bytes
(D0 ... D3). Two control bytes (C0, C1) and two status bytes (S0/S1) are used to
control the I/O module and the drive.
In addition to the position data in the input process image (D0 … D3), it is
possible to display extended status information (S2 … S5). Then the three control
bytes (C1 … C3) and status bytes (S1 … S3) are used to control the data flow.
Bit 3 of control byte C1 (C1.3) is used to switch between the process data and the
extended status bytes in the input process image (Extended Info_ON). Bit 3 of
status byte S1 (S1.3) is used to acknowledge the switching process.
Table 400: DC-Drive Controller 750-636
Input Process Image
Byte Destination
Instance
High Byte
Low Byte
Description
S1 S0
Status
byte
S1 Status
byte
S0
D1*) / S3**)
D0*) / S2**)
Actual position*)
/ Extended status
byte S3**)
Actual position
(LSB) / Extended
status byte S2**)
n
D3*) / S5**)
D2*) / S4**)
Actual position
(MSB) /
Extended status
byte S3**)
Actual position*)
/ Extended status
byte S4**)
*)
ExtendedInfo_ON = ‘0’.
**)
ExtendedInfo_ON = ‘1’.
