Siemens SIMATIC S7-300 Module data Reference Manual

Diagnostics Data of Signal Modules
B-5
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
B.3 Channel-Specific Diagnostic Data from Byte 8
From byte 8 up to byte 15, data record 1 contains the channel-specific diagnostic
data. The figures below show the assignment of the diagnostic byte for a channel
or a channel group of the specific module. The following general rule applies:
When an error occurs, the bit concerned is set to “1”.
You will find a description of possible error causes and appropriate remedies in the
section called “Diagnostics of the Modules”.
Digital input channel of the SM 321; DI 16 24 VDC; with hardware and
diagnostic interrupts
76 0
Sensor supply missing
54321
00
Configuring/parameter assignment error
Ground fault
Wire-break
Short-circuit to L+
Short-circuit to M
Figure B-4 Diagnostic Byte for a Digital Input Channel of the SM 321; DI 16 x 24 VDC
Digital output channel of the SM 322; DO 8 x 24 VDC/0.5 A; with diagnostic
interrupt
76 0
Short-circuit to L+
Short-circuit to M
Wire-break
External auxiliary supply missing
54321
0
Configuring/parameter assignment error
Ground fault
Overtemperature
Figure B-5 Diagnostic Byte for a Digital Output Channel of the SM 322;
DO 8 x 24 VDC/0.5 A

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)