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Interface modules • 4PP065.IF33-1
82
Power Panel 65 User's manual V2.21
3.7.6 Terminating resistors
Two switches are located on the back of the interface module that can be used to switch on a terminating resistor
for the CAN bus interfaces IF1 and IF2.
OFF
ON
OFF
ON
IF1 (CAN-Bus)
IF2 (CAN-Bus)
Interface
Switch position
Description
ON
Terminating resistor enabled (120 Ω)
IF1 (CAN bus)
OFF
Terminating resistor disabled
ON
Terminating resistor enabled (120 Ω)
IF2 (CAN bus)
OFF
Terminating resistor disabled
3.7.7 I/O mapping in Automation Studio
Data points for interfaces IF1 and IF2 are available in the I/O mapping in Automation Studio.
I/O mapping for IF1
Channel name
Data type
Description
NodeSwitch
USINT
Hexadecimal value of the node number switch (identical with NodeSwitch of IF2).
TerminatingResistor
1)
BOOL
State of the switch for the IF1 terminating resistor:
0 ... OFF: Terminating resistor disabled
1 ... ON: Terminating resistor enabled
1)
TerminatingResistor only available in Automation Runtime A4.32 and later.
I/O mapping for IF2
Channel name
Data type
Description
NodeSwitch
USINT
Hexadecimal value of the node number switch (identical with NodeSwitch of IF1).
TerminatingResistor
1)
BOOL
State of the switch for the IF2 terminating resistor:
0 ... OFF: Terminating resistor disabled
1 ... ON: Terminating resistor enabled
1)
TerminatingResistor only available in Automation Runtime A4.32 and later.
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