112 Programming the PFC Using WAGO-I/O-PRO
WAGO-I/O-SYSTEM 750
750-806 Fieldbus Controller DeviceNet
TM
Manual
Version 2.0.0
In addition to transmitting input/output data, the dynamic assembly can also be
used for targeted selection of data that should be transmitted explicitly or not
transmitted explicitly via the fieldbus.
Do not apply physical outputs in mapping!
If setting physical outputs from the PFC, either instance 11 of the static assembly
or the dynamic assembly must be used. The physical outputs may not be applied
in the mapping. This prevents output data from being transmitted via the fieldbus
and being overwritten by it in the short term.
Additional Information
More details are available in section “Fieldbus Communication” > “Object
Classes” > “Assembly Object (0x04)”.
9.6.5
Change MAC ID by SW
Software (e.g., RSNetWorx) can be used to change the MAC ID of the
DeviceNet
TM
fieldbus controller. The node address is stored in a non-volatile
memory. If the address set on the DIP switch differs from the address set by
software via the network, the color of the I/O LED changes to orange. To reset the
address assigned by software, invalid address 64 is entered in Class 3, Instance 1,
Attribute 1. The controller then has the MAD ID set on the DIP switch.
9.6.6
Heartbeat
The Heartbeat function allows a node to send a so-called Heartbeat message and
to make known its ability to communication to all network subscribers.
If a responsible “Heartbeat Consumer” does not receive any message in a defined
time (Heartbeat Consuming Time), it is registered as a heartbeat error. The
relationships between the producer and consumer of a heartbeat message can be
configured by entries in the object directory, i.e., the time between two heartbeat
messages can be entered in Class 0x01, Instance 1, Attribute ID 10 (0x0A).
