Pepperl+Fuchs AS-i Compact Manual page 30

EtherNet/IP + Modbus TCP-Gateways
Diagnostics
Paragraph A:

Safety diagnostics of safe AS-i inputs
Diagnostics in the IDI is a way of sending the key diagnostics functions to the
controller without a command interface (Mailbox) or any additional effort. The di-
agnostics information is sent in the input data image, coded for the input bits of
the address of the safety input slave.
The switching state of Channels 1 and 2 of the safety input is shown with negligi-
ble time lag in bits 0 and 1 and can be directly read:
Bit3 Bit2
X X
X X
X X
X X
Bits 2 and 3 are used to send the status of the safety input (the device color of the
ASIMON):
Bit3 Bit2
0 0
0 1
1 0
1 1
30
Safety diagnostics in the Input Data Image (IDI)
Bit1 Bit0 Description
0 0 Both channels open
0 1 nd
2 channel open, 1
1 0 nd
2 channel closed, 1
1 1 Both channel closed
Bit1 Bit0 Description
X X Device color: red, green or gray
X X Device color: yellow ("waiting")
X X Device color: yellow flashing ("testing")
X X Device color: red flashing ("Error")
st
channel closed
st
channel open
Tab. 7-20. Stae of safety input
Tab. 7-19.