Omron SYSMAC CS Series Operation Manual page 282

B7A Interface Units
Output Ports
Parts and Names
244
■
Transmission Error Flag
The corresponding Transmission Error Flag in the first word allocated to the
Unit in the CPU Unit's Auxiliary Area will turn ON for each input port, as
shown in the following table. Words A050 to A080 are allocated to Basic I/O
Unit as information words.
Example: Rack 0, Slot 0
Port where
error
CS1W-B7A12
occurred
Port 1 A05000
Port 2 A05001
Port 3 ---
Port 4 ---
Example: Rack 0, Slot 1
Port where
error
CS1W-B7A12
occurred
Port 1 A05008
Port 2 A05009
Port 3 ---
Port 4 ---
■ Transmission Error Input Status Processing
If an error occurs at an input port, the Unit will hold the status of the input bit in
the CPU Unit's I/O memory from immediately before the transmission error
occurred. When transmission returns to normal, the signals that have been
normally received will be input to the input bit.
The B7A Interface Unit does not detect transmission errors at output ports.
Detect output port transmission errors at the B7A Link Terminal that is con-
nected to the B7A Interface Unit.
Transmission Error Flag
CS1W-B7A02 CS1W-B7A21
--- ---
--- A05000
--- ---
--- ---
Transmission Error Flag
CS1W-B7A02 CS1W-B7A21
--- ---
--- A05008
--- ---
--- ---
Indicators
Connection terminals
Section 3-8
CS1W-B7A22
---
---
A05000
A05001
CS1W-B7A22
---
---
A05008
A05009