Implemented protocols in UNIGATE® CX C4Map
Deutschmann Automation GmbH & Co. KG
18
Fieldbus-Gateway UNIGATE
®
CX C4Map - PROFIBUS V. 1.0
28.9.20
7.1.2.5
Gateway Control Byte
Some properties of the gateway can be controlled by fieldbus data. For this purpose, the informa-
tion must be transferred from the fieldbus to the gateway, i.e. it must be in the gateway's
entrance area. The data can only be evaluated by the gateway if this information is mapped from
the fieldbus to the gateway.
Settings Gateway Control Byte
Gateway Control Byte
Bit 7
EMCY
toggle bit
Bit 6
Set OP
toggle bit
Bit 5
Request to
response
res.
res.
res.
res.
res.
7.1.2.6
Bit 7 (MSB): EMCY Toggle Bit
With this bit, the next EMCY message can be transferred to the current data buffer, regardless of
whether the data is displayed in the fieldbus or not. The counter is decremented by 1 if it is not 0.
7.1.2.7
Bit 6: Set Operational Toggle Bit
If this bit is changed, the gateway sends the Set Operational message to the slaves. This feature
is to be used when some slaves are slower than the master and are only ready when the master
has already sent this message.
7.1.2.8
Bit 5: RTR - Request to response
With this bit (transition from 0 -> 1) RTR telegrams can be sent to all PDOs mapped as Rx. This
RTR means that the addressed PDOs are sent and thus updated in the gateway.
If the RTR functionality is used, at least 1 Rx PDO must be mapped. Furthermore, no more than
50 Rx PDOs may be mapped, otherwise an overrun will occur.
7.1.2.9
Gateway Error Byte
The current error status of the gateway itself, like the other values of the node guarding or the
slave data, can be mapped in the fieldbus.
Setting Error Byte
Summary of Contents for UNIGATE CX C4Map
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