Profibus-Dp; Process Image Access; Example - WAGO I/O-SYSTEM 750 Manual

92 • Fieldbus-specific Additions

PROFIBUS-DP

5.4 PROFIBUS-DP

5.4.1 Process Image Access

The Bluetooth
PROFIBUS master. To ensure data consistency at a data width of 12 to 48
bytes, the data must be mapped with system functions for the consistent read-
ing and writing to an appropriately large, reserved flag area. The data in this
flag area can then be processed by the control program.

5.4.1.1 Example

A node contains the following modules with input and output process image:
3 x 750-402
1 x 750-452
1 x 750-644
1 x 750-550
1 x 750-452
1 x 750-550
1 x 750-452
1 x 750-504
The Bluetooth
of 6 bytes. The mailbox is unmasked.
The input/output configuration in the PROFIBUS master can be structured as
follows:
®
module data is accessed through the process image of the
for every 4 bits of input data,
4 bytes of input data,
12 bytes of input and 12 bytes of output data,
4 bytes of output data,
4 bytes of input data,
4 bytes of output data,
4 bytes of input data,
4 bits of output data.
®
module uses a process image of 12 bytes with a mailbox size
no. Function
1 Digital input
Digital input
Digital input
Digital input
2 Digital input
Digital input
Digital input
Digital input
3 Digital input
Digital input
Digital input
Digital input
Module
Identifier
750-402 4 DI/24 V DC/3.0 ms
0x10
*750-402 4 DI/24 V DC/3.0 ms
0x00
750-402 4 DI/24 V DC/3.0 ms
0x10
Process image of the master *
inputs outputs
EB12.0
EB12.1
EB12.2
EB12.3
EB12.4
EB12.5
EB12.6
EB12.7
EB13.0
EB13.1
EB13.2
EB13.3
WAGO-I/O-SYSTEM 750
I/O Modules