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Instruction manual FM-IM / FMX-IM
3.4.2
Software-supported IO-Link-Parametrization
IMPORTANT INFORMATION
Locking in the pushbutton guided menu
During the time the data processing device communicates via IO-Link, the
pushbutton-guided menu is locked; this means, the parameters can no longer
be changed via the pushbuttons. However, the process values can be accessed
via the pushbuttons. The IO-Link mode is signaled via LED (see below).
The ports of the IO-Link-Master can be configured in the IO-Link-Mode (IOL) or
in the Standard-IO-Mode (SIO).
If a port is configured in the SIO-Mode, the IO-Link-Master on this port behaves
like a normal digital input and the connected IO-Link device (here FM-IM/FMX-
IM) sends the standard switching output to the IO-Link-Master – there is no
communication between the device and the master.
If the port is configured in the IOL-Mode, the IO-Link-Master tries to wake the
connected IO-Link-device via the "Wake-up Request". If the master receives a
response from the signal processor, both devices start to communicate with
each other. First, the communication parameters are exchanged; then the cy-
clic data exchange of the process data (Process Data Objects) starts. The IO-
Link mode is signaled via LED (see Chapter 4.2 on p. 16 and Chapter 4.3 on
p. 18).
With cyclic communication, the data is transmitted according to the following
process data image:
Bit
Bit
15
14
Flow Bit value with Bit 15 as MSB... Bit 6 as LSB
Table 1:
For the outputs Out 1 (Flow), Out 2 (Temp) and Out 3 (Fault) the following swit-
ching states are valid:
■
0: Switching output off or relay contact open
■
1: Switching output on or relay contact closed
In case of active IO-Link-communication (IOL-Mode), both cyclic and acyclic
communication services are available.
12
Bit
Bit
Bit
Bit
13
12
11
10
(10 Bit-Value)
Cyclic process data image IO-Link (Process Data Objects)
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Bit
Bit
Bit
Bit
9
8
7
6
Bit
Bit
Bit
Bit
5
4
3
2
not assigned
Out
3
Bit
Bit
1
0
Out
Out
2
1
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