HIMA HIMax® Analog Input Module X-AI 16 51

Product Description

The X-AI 16 51 analog input module is intended for use in the programmable electronic

system (PES) HIMax.

The module can be inserted in any of the base plate slots with the exception of the slots

reserved for system bus modules. For more information, refer to the System Manual

(HI 801 001 E).

The module is used to evaluate up to 16 analog input signals.

Various modes of operation can be configured for the analog inputs:

• Voltage/temperature, voltage measurement in mV

• Thermocouples

• Current, current measurement in mA

• Pt100. (2-wire circuit, 4-wire circuit)

The module is designed for operation in accordance with the standards for Pt100

resistance thermometers (IEC 60751:2008) and thermocouples (IEC 60584-1:1998).

The module provides two current sources for operating the Pt100 resistance thermometer.

The module has been certified by the TÜV for safety-related applications up to SIL 1

(IEC 61508. IEC 61511 and IEC 62061).

A safety function in accordance with SIL 2 can be achieved with a 1oo2 modules structure

(Chapter 4.5.2), while a 1oo3 structure (Chapter 4.5.3) ensures a safety function in

accordance with SIL 3.

The module can be operated with safety-related modules within one base plate.

The module is non-reactive to the safety-related modules. In particular, this includes EMC,

electrical safety, communication to the X-SB and X-CPU modules and the user program.

Module and connector boards are mechanically coded, see Chapter 3.6.1.

Refer to the HIMax Safety Manual (HI 801 003 E) for more information on the standards

used to test and certify the modules and the HIMax system.

Safety Function

The module does not perform any safety-related functions.

The module measures the voltage of resistance thermometers and thermocouples with

metrological accuracy.

The module measures the current of sensors with metrological accuracy.

Reaction in the Event of a Fault

If a fault occurs, the initial value (default value = 0) is transmitted to the user program for

the process values. The initial values must be defined by the users. If the raw value is

evaluated instead of the process value, the user must program the monitoring function and

the value in the event of faults from within the user program.

The module activates the Error LED on the front plate.

Scope of Delivery

The module must be installed on a suitable connector board to be able to operate. If a FTA

is used, a system cable is required to connect the connector board to the FTA. Connector

boards, system cables and FTAs are not included within the scope of delivery.

The connector boards are described in Chapter 3.6. the system cables are described in

Chapter 3.7. The FTAs are described in own manuals.