Digital Output Modules - Siemens SIMATIC S5-90U System Manual

S5-90U/S5-95U

15.5.2 Digital Output Modules

Output Modules with Error Diagnostics
The output modules
can signal errors to the CPU in addition to indicating of faults (red LED).
The error messages can be scanned at input channels I X.0 and I X.1.
The following error messages are possible:
Table 15-4. Error Messages of Output Modules with Error Diagnostics
Address
I X.0
I X.1
X is the byte address of the output module
A pending error is indicated by signal status "1". In the case of output modules without error
diagnostics, the PII is set to "0".
EWA 4NEB 812 6115-02b
4 x 24 V DC/0.5 A
4 x 24 V DC/2.0 A
4 x 24 to 60 V DC/0.5 A
Type of Error
Short-circuit at output channel/fuse tripped
no load voltage
Module defective (output transistor failed)
Module Spectrum
(6ES5 440-8MA12)
(6ES5 440-8MA22)
(6ES5 450-8MB11)
or
15-23