AIP831-101/EIM

The Yokogawa AIP831-101/EIM is a desktop operation keyboard designed for the CENTUM VP Human Interface Station (HIS). Its eight-loop control layout provides dedicated operator input for simultaneous multi-loop operation, while touch sensors support functions such as instrument faceplate highlighting on the HIS screen. The unit also incorporates an audible alarm function and a USB speaker, with power supplied through the PC's USB interface.

Functional Description

The AIP831-101/EIM provides a physical operator interface for process monitoring and control through a compatible CENTUM VP desktop HIS. Its eight-loop layout gives operators dedicated controls for working with multiple process loops. The touch-sensing function detects bare-hand contact and can trigger instrument faceplate highlighting on the HIS display.

The keyboard also includes an internal electronic buzzer and a USB speaker for audible notifications. Keyboard input and audio functions use separate USB interfaces, allowing the device to provide both operator input and sound output through the host PC connection.

Technical Specifications

Parameter	Specification
Model	AIP831-101/EIM
Brand	Yokogawa
Manufacturer	Yokogawa Electric Corporation
Product Type	Eight-loop simultaneous operation keyboard
Compatible System	CENTUM VP Desktop HIS
Keyboard Layout	Eight-loop control layout
Touch Sensor	Bare-hand touch sensing
Audio Function	Internal electronic buzzer and USB speaker
Input Voltage	5 VDC +/- 5%
Maximum Current Consumption	1.0 A
USB Connectors	2 x USB Type-A
Keyboard Interface	USB 2.0, full-speed, bus-powered
Sound Interface	USB 1.1, full-speed, bus-powered
Safety Standard	IEC 61010-1, Class I (as specified in the supplied data)
Operating Temperature	5 to 40 deg C
Storage Temperature	-20 to 60 deg C
Ambient Humidity	20% to 80% RH, non-condensing
Chassis Color	Black, Munsell No. N1.5
Weight	2.0 kg
Mounting	Desktop / VESA mountable, as specified in the supplied data

System Compatibility and Connection Requirements

The AIP831 requires the applicable CENTUM VP software configuration for eight-loop simultaneous operation. Yokogawa's Release 6 specification identifies the VP6H1140 Eight-loop Simultaneous Operation Package as an optional package used with the standard operation and monitoring function VP6H1100. Only one AIP831 keyboard can be used per Desktop Type HIS under this specification. 

Both USB Type-A connectors must remain connected directly to the computer. One supports keyboard operation and the other supports the sound function; connecting only one may leave part of the keyboard's functionality unavailable. 

Model Code Identification

The /EIM option denotes an English instruction manual. The AIP831-101 configuration includes a mode-selection switch and Type B operation-confirmation key according to Yokogawa's model and suffix coding. The VESA mounting bracket is a separate option designated /VESA. 

Frequently Asked Questions

Q: Does the AIP831-101/EIM work with every CENTUM VP Desktop HIS configuration?

A: No. The applicable CENTUM VP software functions and eight-loop simultaneous operation package must be installed. Verify the system release and software configuration before ordering a replacement.

Q: Can the keyboard operate with just one USB cable connected?

A: Both USB Type-A connectors must be connected directly to the computer. The keyboard and sound functions use separate USB interfaces.

Q: Does the EIM suffix indicate a different keyboard hardware version?

A: No. In Yokogawa's ordering code, /EIM identifies the English instruction manual option. The hardware configuration is identified by the base model and its suffix codes.

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