Siemens SIMATIC ET 200PA SMART+ Equipment Manual

Diagnostics mes‐
sage
Error
code
Assignment Meaning Remedy
Retentive memory
in carrier module
defective
154
H
Module Fault detected in the memory block on the
carrier module during startup.
Replace carrier module
Retentive memory
in the terminal
block defective
155
H
Module Fault detected in the memory block on the
terminal block during startup.
Replace terminal block
1)
47 kΩ resistors can be used provided that the following supplementary conditions are complied with: Only singular structure
of the IO modules (no IO redundancy); the process cables are shielded.
2)
Only the terminal blocks (TB 45R ...) are suitable for use with I/O modules in IO redundancy.
A.4 Maintenance events [ID:151040998411]
Maintenance events
A maintenance event is generated for each maintenance required identi󹪝ed. The MT LED lights
up on the module.
Maintenance messages do not have a direct in󹪞uence on the functions of the module or
digital inputs.
Maintenance
message
Error
code
Assignment Meaning / Cause Remedy
Redundancy part‐
ner has di󹪜erent
hardware/󹪝rm‐
ware version
120
H
Module The redundantly con󹪝gured and intercon‐
nected I/O modules are not compatible.
Check the operating status and
󹪝rmware version of the mod‐
ules and replace modules or
perform a 󹪝rmware update.
IO redundancy
warning
121
H
Module Unable to correctly communicate with the
partner module.
• Check/replace right-hand
module
• Check/replace left-hand
module
• Check/replace terminal
block
See also system manual "ET
200PA SMART+ Distributed I/O
System, section "Replacing an
I/O module with IO redundan‐
cy"
Retentive memo‐
ry in carrier mod‐
ule defective
154
H
Module Fault detected in the memory block on the
carrier module during operation.
Replace carrier module
Retentive memo‐
ry in the terminal
block defective
155
H
Module Fault detected in the memory block on the
terminal block during operation.
Replace terminal block
Drivers, parameters, diagnostics messages and address space
A.4Maintenance events
DI 16x24VDC PA
42 Equipment Manual, 06/2023, A5E51654101-AA

Siemens SIMATIC ET 200PA SMART+ Specifications

General

Brand	Siemens
Model	SIMATIC ET 200PA SMART+
Category	I/O Systems
Language	English