Technical data

Table Of Contents
Diagnostic Data
System Software for S7-300/400 System and Standard Functions - Volume 2/2
A5E00739858-01
32-3
Byte Bit Meaning Remarks Data
Record
4 0
to
6
Channel type B#16#70: Digital input
B#16#72: Digital output
B#16#71: Analog input
B#16#73: Analog output
B#16#74: FM-POS
B#16#75: FM-REG
B#16#76: FM-ZAEHL
B#16#77: FM-TECHNO
B#16#78: FM-NCU
B#16#79 to
B#16#7D: reserved
B#16#7E: US300
B#16#7F: reserved
1
7 Further channel type exists? 0: No
1: Yes
5 0
to
7
Number of diagnostic bits
output per channel by a
module.
The number of diagnostic bits per
channel is rounded up to byte
boundaries
1
6 0
to
7
Number of channels of one
channel type on a module
If different channel types exist on a
module, the structure is repeated in
data
record 1 from byte 4 onwards for each
channel type.
1
7 0 Channel error channel 0/
Channel group 0
First byte of the channel error vector
(the length of the channel error vector
depends on the number of channels
and is rounded up to a byte
boundary).
1
1 Channel error channel 1/
Channel group 1
2 Channel error channel 2/
Channel group 2
3 Channel error channel 3/
Channel group 3
4 Channel error channel 4/
Channel group 4
5 Channel error channel 5/
Channel group 5
6 Channel error channel 6/
Channel group 6
7 Channel error channel 7/ Channel
group 7
... - Channel-specific errors (see
Structure of Channel-Specific
Diagnostic Data)
1