Chapter 2 Specifications and System Configuratio n 2.5 Specifications for Analog Input/Output Modules 2.5.1 General Specifications AH04AD-5A/ AH08AD-5A/AH08AD-5B/AH08AD-5C Electrical specifications Functional specifications 2-34 Module name AH04AD-5A AH08AD-5B AH08AD-5B AH08AD-5C Number of inputs 4 8 8 8 Analog-to-digital Voltage input/Current input Voltage input/Current input Voltage input Current input conversion Supply voltage 24 V DC (20.4 V DC~28.8 V DC) (-15%~+20%) Connector type Removable terminal block Conversion time 150 μs/channel An analog circuit is isolated from a digital circuit by a digital integrated circuit/an optocoupler, but the analog channels are not isolated from one another.
Isolation between a digital circuit and a ground: 500 V DC Isolation between an analog circuit and a ground: 500 V DC Isolation between an analog circuit and a digital circuit: 500 V DC Isolation between the 24 V DC and a ground:
500 V DC Isolation Weight 200g Analog-to-digital Voltage input conversion Rated input range -10 V~10 V 0 V~10 V ±5 V 0 V~5 V 1 V~5 V Hardware input -10.1 V~10.1 V -0.1 V~10.1 V -5.05 V~5.05 V -0.05 V~5.05 V 0.95 V~5.05 V range Fiducial error ±0.1% (Room temperature) (The umber of input voltages which are averaged is 100.) Fiducial error ±0.45% (Full temperature range) (The number of input voltages which are averaged is 100.) Linearity error ±0.07% (Room temperature) Linearity error ±0.12% (Full temperature range) Hardware 16 bits resolution Input impedance >200 kΩ Absolute input ±15 V range Analog-to-digital Current input conversion Rated input range ±20 mA 0 mA~20 mA 4 mA~20 mA Hardware input -20.2 mA~20.2 mA -0.2 mA~20.2 mA 3.8 mA~20.2 mA