Process Image; Overview - WAGO 750-564 Manual

WAGO-I/O-SYSTEM 750
750-564 4AO U/I
4

Process Image

The 750-564 I/O Module provides one control/status byte (8 bits) and one data
word (16 bits) per channel.
The I/O module outputs signals with a 16-bit process value resolution.
The digitized process value is output in a data word via the process image of the
head station as output byte "0" (low) and output byte "1" (high).
With the setting "Process Image: Standard," the head station hides the control/
status bytes of the individual channels.
With the setting "Process Image: Advanced," the control/status bytes are shown
in the fieldbus process image.
The required setting can be made through parameterization with the WAGO-I/O-
CHECK commissioning tool.
Alternatively, the I/O module can also be parameterized via the PROFIBUS and
PROFINET device description (GSD file). The description of the parameterization
can be found in the appendix in section "Configuration and Parameterization via
GSD File with PROFIBUS DP and PROFINET IO."
4.1

Overview

Control/status byte with setting "Process Image: Standard":
Representation depends on the head station!
The I/O module provides the head station with a complete process image,
including control/status bytes. The WAGO-I/O-CHECK commissioning tool
accesses the complete commissioning process image. The head station uses a
different process image for provision of cyclic process data via the fieldbus.
Presentation of control/status bytes may be suppressed in this other process
image, depending on the head station used (see table "Process Image
('Standard') – 750-564 I/O Module").
Process Image 29
Manual
Version 1.0.0