Description

Yokogawa PSCCM22AAN CCM Critical Control Module

Configured for safety logic execution and rack-level processor communication in the ProSafe-PLC platform, the Yokogawa PSCCM22AAN (PSCCM22AAN Critical Control Module) provides direct physical and electrical execution of Safety Instrumented System control functions through the ProSafe-PLC backplane architecture. The module incorporates onboard processing resources, non-volatile memory, and diagnostic functions for safety application management.

Suffix Breakdown & Model Matrix

The supplied documentation identifies PSCCM22AAN as the complete module designation. Available documentation references associated part numbers including 16418-531/1 and 16418-531/4. No official suffix decoding structure is specified in the provided source material.

Hardware Specifications

Parameter	Specification
Model	PSCCM22AAN
Brand	Yokogawa
Origin	Not specified in provided documentation
Product Type	CCM+ Critical Control Module (CPU Module)
Part Number	16418-531/1, 16418-531/4 (variant dependent)
Input Voltage	24 VDC (+/-15%)
Current Consumption	Max. 0.60 A
Power Consumption	Derived from 24 VDC supply and 0.60 A maximum current
Processor Architecture	Safety-configured microprocessor system
Memory Type	RAM and non-volatile Flash/ROM
Typical ROM Version	3.03 (version dependent)
Backplane Interface	ProSafe-PLC rack interface
Internal Communication	+/-15 VDC internal bus signaling
Redundancy Support	Dual-redundant processor deployment supported
Operating Temp	0 degC to +60 degC
Storage Temp	-40 degC to +85 degC
Relative Humidity	5% to 95% RH, non-condensing
Protection Class	IP20
Certifications	CE, RoHS
Dimensions	5.1 cm x 25.4 cm x 30.5 cm
Weight	1.9 kg

Channel-to-Channel Isolation and Process Control Integration

Within process control and safety system environments, the PSCCM22AAN operates through the ProSafe-PLC backplane communication structure rather than direct field signal acquisition. System architectures utilizing this module may incorporate channel-to-channel isolated I/O subsystems and process instrumentation networks connected through associated interface modules. Communication between processor and rack modules is performed through the internal bus infrastructure, supporting processor redundancy configurations and fault diagnostic exchange.

Frequently Asked Questions

Q: Does the PSCCM22AAN support redundant processor operation?
A: Yes. The provided documentation specifies support for dual-redundant deployment configurations intended to reduce single-point processor failures within ProSafe-PLC safety systems.

Q: Can the module be replaced while the system remains energized?
A: Hot replacement capability is referenced when the processor is installed within an appropriately configured redundant architecture. Actual replacement procedures should follow the applicable ProSafe-PLC maintenance documentation.

Q: What power supply requirements apply to the module?
A: The module requires a 24 VDC power source with a tolerance of +/-15% and a maximum current consumption of 0.60 A.

Field Installation Guidelines

• Verify rack slot assignment and processor redundancy configuration before insertion.
• Confirm 24 VDC supply voltage remains within specified tolerance limits prior to energization.
• Maintain cabinet grounding according to site electrical standards and manufacturer installation requirements.
• Route power wiring and communication wiring separately where practical to reduce conducted electrical interference.
• Ensure ventilation paths within the control cabinet remain unobstructed.
• Observe electrostatic discharge protection procedures during handling and installation.
• Validate processor synchronization and diagnostic status following module replacement in redundant systems.
• Record firmware and ROM revision information before maintenance activities to support compatibility verification.

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems