Siemens SIMATIC ET 200AL - Counting Control and Methods; Gate Control and Counting Direction; Overview of Counting Configuration Methods

Interrupts, error messages, diagnostics and system alarms
5.2 Interrupts
IM 157-1 DP (6ES7157-1AA00-0AB0)
Equipment Manual, 08/2021, A5E32100641-AE
31
The following table is used to explain the channel error entries.
Description
Channel number
0 … 63: Channel number for channel error
0x8000: Entire submodule
Channel properties Bits 0 to 7 00H: Free data type
01
H: bit
02
H: 2 bit
03
H: 4 bit
04
H: byte
05
H: word
06H: double word
07H to FFH: Reserved
Bit 8 0: Channel
1: Channel group
Bit 9, 10
00
H
: Diagnostics
01H: Maintenance demanded
02
H: Maintenance required
03H: Reserved
Bit 11, 12 00H: Channel error-free
01
H: Incoming diagnostics
02
H: Outgoing diagnostics
03
H: Outgoing diagnostics, but other diagnostics are also
pending on this channel
Bits 13 to 15
00
H
: Reserved
01H: Input channel
02
H: Output channel
03H: Input/output channel
Channel error type
Explanations are available in the device manuals, in the section "Diagnostic
alarms".