Specifications

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A616TD, A68RD3/4 specifications

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System configuration example

Part number A616TD A68RD3/4

Applicable QnA/A Series PLC QnA/A Series

Number of I/O points

required

Number of input channels 16 8

Temperature sensor input -200 to 1800°C -180 to 600°C

0 to 4000 digital

-1800 to 6000 or

Digital output values -2000 to 18000 temperature

-180000 to 600000

val

Acceptable JIS, ANSI, DIN, BS

Pt100/JPt100

thermocouples (see manual)

RD3 3-wire type

RD4 4-wire type

Overall accuracy ±0.5°C or 0.6% ±1%

Cold junction

-20 to 80°C Not available

compensation range

Maximum conversion speed

50 ms/channel 40 ms/channel

Insulation No insulation between channels

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A616TD, A68RD3/4

Thermocouple input modules

The A616TD and A68RD3/4 thermocouple input modules

allow the direct connection of thermocouple devices to the

PLC. Each of the modules convert the inputted signal from the

thermocouple device into a digital value representing the

detected temperature value. This detected temperature value

can then be utilized within the PLC sequence program.

The A616TD thermocouple input module has the additional

function of accepting other temperature sensing devices which

produce an analog input. Connection with a multiplexing unit

A60MX/MXT/MXR is also possible; providing up to 960 sensor

inputs.

Temperature detection

Analog Modules

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