EN
- Overview
- Specifications
- Description
- Applications
- Functions
- LED indicators
- Offline/startup Diagnostics
- FAQ
- Recommended Products
Overview
Place of Origin: |
Sweden |
Brand Name: |
ABB |
Model Number: |
MPP SC300E-MPP |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Specifications
|
Parameter |
Value |
|
Model |
MPP SC300E-MPP |
|
Product Type |
Processor Module |
|
Dimensions |
2.7 x 40.3 x 39.8 cm |
|
Weight |
1.38 kg |
|
Processor |
Intel family |
|
EPROM |
1 MB fitted |
|
RAM |
1 MB fitted |
|
RAM Backup Battery |
Optional lithium battery (shelf life 8–10 years, program holdup ~6 months) |
|
Inter-Processor Communication |
Serial high speed (read only) |
|
Diagnostic Port |
Factory testing purposes |
|
Keyswitch |
4-position (On Line / Program / Test / Reset) |
|
Indicators |
Run / On Line / Program / Test / Health / I/O Scan / Battery / Communications |
|
Power Consumption |
10 W |
|
Operating Temperature |
+5°C to +60°C |
|
Storage Temperature |
-25°C to +70°C |
|
Humidity |
5% to 95% non-condensing (<40°C ambient) |
Description
The ABB MPP SC300E-MPP is the central Main Processor Module for the Triguard SC300E Safety Control System. Designed for high-integrity applications up to SIL 3, this module is the core intelligence responsible for executing safety logic, performing continuous self-diagnostics, and managing synchronized communication across the controller backplane.
Applications
Oil refineries: As the core of the Emergency Shutdown (ESD) system, they control high-pressure reactors and flare systems.
Large chemical plants: They provide critical safety interlocks in exothermic reaction control.
Nuclear and thermal power plants: They execute the safety logic of the boiler burner management system (BMS).
Functions
Polling of inputs and outputs
Diagnostics to detect internal faults, power outages, voting agreement and the health of the processor module microprocessor
Tracking of maintenance activities such as hot repair
Detection of latent faults in I/O modules
Execution of safety and control logic
Data acquisition and Sequence Of Events (SOE) for transmission to an operator workstation
LED indicators
The front panel LED’s illuminate to indicate the following conditions:
RUN (green): MPP running (as indicated by microprocessor supervisory watchdog output)
ON -LINE (yellow): MPP on line
PROGRAM (yellow): MPP in program mode
TEST (yellow): Reserved for future use
HEALTH (green): Microprocessor running (as indicated by microprocessor address strobe monitoring circuit)
I/O SCAN (yellow): Scan of I/O modules in progress
BATTERY (green): Backup batteries (1 or 2) healthy
SIO COMMS (yellow): Scan of serial I/O module in progress
Offline/startup Diagnostics
When a SC300E’s MPPs are first powered up, the following diagnostic routines are executed:
Initialisation of all SRAM
Memory configuration and size checks
RTTS and application logic copied to SRAM
All program checksums recalculated and checked
Configuration and checksums of neighbouring MPPs read and confirmed
Initialisation of synchronisation registers
Synchronisation registers of neighbouring processors read
A processor will then pause, waiting for the other two MPPs to complete their startup diagnostics.
FAQ
Q: How long is program retention after power loss on MPP SC300E-MPP?
A: With lithium battery, program retention is about 6 months.
Q: Can the diagnostic port of MPP SC300E-MPP be used by users?
A: No. It is for factory testing; users debug via engineering workstation.
Q: What do RAM and EPROM store in MPP SC300E-MPP?
A: EPROM (1MB) stores firmware/OS; RAM (1MB) stores user logic programs.
Q: Does MPP SC300E-MPP need reprogramming after replacement?
A: Redundant systems auto-sync via serial link; non-redundant requires manual download.
Q: What are humidity conditions for MPP SC300E-MPP operation?
A: 5%–95% non-condensing, with ambient temperature ideally below 40°C.
