Port Monitoring

Description

The module offers various diagnostic options, such as wire break detection and short circuit protection.

Wire break detection on analog input ports

Analog input ports configured on the voltage input have wire break detection on Pin 2 and Pin 4.

———-How does this work for the the hub—————————

The wire break detection does not work for a current input. Wire break can be signaled in case of fast changing signals. Signals with an edge steepness of > 750 V/s can cause false wire break signals, therefore wire break detection can be activated or deactivated independently for each port (default: deactivated).

Short circuit or wire break detection on analog output ports

Process Data

Port monitoring – Process Data
Name	Description	Direction
Pin 1 short circuit	Status byte for short circuit of Pin 1	Input
Port status	Status byte for port status.	Input

Process data bits for Pin 1 short circuit

Port monitoring – Pin 1 short circuit PD object
Bit
7	6	5	4	3	2	1	0
Short circuit Port 8, Pin 1	Short circuit Port 7, Pin 1	Short circuit Port 6, Pin 1	Short circuit Port 5, Pin 1	Short circuit Port 4, Pin 1	Short circuit Port 3, Pin 1	Short circuit Port 2, Pin 1	Short circuit Port 1, Pin 1

Port monitoring – Pin 1 short circuit PD object, values
Value	Meaning
0	No short circuit at Pin 1
1	Short circuit at Pin 1

Process data bits for Port status

Port monitoring – Port status PD object
Bit
7	6	5	4	3	2	1	0
Status Port 8	Status Port 7	Status Port 6	Status Port 5	Status Port 4	Status Port 3	Status Port 2	Status Port 1

Port monitoring – Port status PD object, values
Value	Meaning
0	Port has no error
1	Port error

The following events can generate errors on the port status:

Wire break at Pin 2 / Pin 4 for analog input ports
Overcurrent on analog voltage output
Overvoltage (wire break) on analog current output

Process Data Object serves as a collector object. The detailed cause of the event can be read by the ISDU.

ISDU

Port monitoring – ISDU
Name	Index	Subindex	Access	Length	Data Type	Data Storage
Short circuit Pin 1	0xD6 (214)	0	R	1 Byte		n/a
Short circuit Pin 1 Port x	0xD6 (214)	1…8	R	1 Bit	BOOL	n/a
Short circuit of outputs	0xD7 (215)	0	R	1 Byte		n/a
Short circuit of output Port x	0xD7 (215)	1…4	R	1 Bit	BOOL	n/a
Wire break on inputs	0xD9 (217)	0	R	1 Byte		n/a
Wire break ininput Port x	0xD9 (217)	1…4	R	1 Bit	BOOL	n/a

Port monitoring

Port monitoring – Short circuit Pin 1, subindex and port assignment
Subindex	Port
1	Port 1
2	Port 2
3	Port 3
4	Port 4
5	Port 5
6	Port 6
7	Port 7
8	Port 8

Port monitoring – Short circuit Pin 1, values
Value	Meaning
0	No short circuit at Pin 1
1	Short circuit at Pin 1

System Commands

Port monitoring – System Commands
Command Value	Device Action
0x81 (129)	Application Reset – Resets writable parameters to the default value.
0x82 (130)	Reset Factory Settings – Resets writable parameters to the default value.

Events

Port monitoring – Events
Event Code	Event Type	Description	Device Status
0x7710 (30480)	Error	Short circuit	4 – Failure
0x8D50 (36176)	Error	Error on Port 1	0 – Device is operating properly.
0x8D51 (36177)	Error	Error on Port 2	0 – Device is operating properly.
0x8D52 (36178)	Error	Error on Port 3	0 – Device is operating properly.
0x8D53 (36179)	Error	Error on Port 4	0 – Device is operating properly.
0x8D54 (36180)	Error	Error on Port 5	0 – Device is operating properly.
0x8D55 (36181)	Error	Error on Port 6	0 – Device is operating properly.
0x8D56 (36182)	Error	Error on Port 7	0 – Device is operating properly.
0x8D57 (36183)	Error	Error on Port 8	0 – Device is operating properly.

The following events can generate errors on the port:

Short circuit at pin 1
Wire break at Pin 2 / Pin 4 - analog inputs
Overload - analog outputs