AAB841-S03/M4A00

The Yokogawa AAB841-S03/M4A00 is an 8-channel analog input and 8-channel analog output module designed for industrial control system signal processing. It supports 1 to 5 V input signals and 4 to 20 mA output signals. This configuration is non-isolated and includes an MAC2-compatible adapter option, ATM4A-00, for the specified interface arrangement.

Technical Specifications

Parameter	Specification
Model	AAB841-S03/M4A00
Base Model	AAB841
Brand	Yokogawa
Product Type	Analog I/O Module
Analog Input Channels	8
Analog Output Channels	8
Analog Input Signal	1 to 5 V
Analog Output Signal	4 to 20 mA
Isolation	Non-Isolated
Module Type	Standard Type
Hardware Type	Basic Type
Environmental Option	ISA Standard G3
Operating Temperature Option	-20 to 70 deg C
Adapter Option	MAC2 Compatible Adapter
Adapter Model	ATM4A-00
Weight	0.3 kg

Analog Input and Output Functions

The AAB841 combines analog input and analog output functions in one module. Its eight input channels accept 1 to 5 V signals from external instruments, while eight output channels provide 4 to 20 mA signals to connected control devices.

The input and output sections serve different signal paths. Input channels acquire analog measurements for the control system, whereas output channels deliver analog control signals to external equipment. The non-isolated configuration should be considered when checking grounding arrangements, signal common connections, and electrical compatibility with field devices.

Model Configuration and Options

The complete ordering number AAB841-S03/M4A00 identifies the module configuration and adapter option.

• -S: Standard type.
• 0: Basic type.
• 3: ISA Standard G3 option and temperature option (-20 to 70 deg C).
• /M4A00: MAC2-compatible adapter option, associated with adapter model ATM4A-00.

The /M4A00 option identifies the specified adapter configuration. It should be retained when checking replacement requirements, as the adapter arrangement is part of the complete ordering designation.

Frequently Asked Questions

Q: How many analog input and output channels does the AAB841-S03/M4A00 provide?

A: It provides 8 analog input channels and 8 analog output channels. The inputs support 1 to 5 V signals, while the outputs support 4 to 20 mA signals.

Q: Is the AAB841-S03/M4A00 electrically isolated?

A: No. The supplied specification identifies this module as non-isolated. Check field signal grounding, common connections, and electrical compatibility before integrating it into an existing I/O arrangement.

Q: What does the /M4A00 suffix indicate?

A: It identifies the MAC2-compatible adapter option associated with model ATM4A-00. The complete suffix should be checked when selecting a replacement or verifying the existing hardware configuration.

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