AH500 Module Manual 4.1 Overview The specifications for an analog input/output module, the operation, and the programming are described in this chapter. Analog signals (voltages or currents) are received by four channels on an analog input/output module, and are converted into 16-bit digital signals. Besides, the analog input/output module receives two pieces of 16-bit digital data from a CPU module. The digital data is converted into analog signals (voltages or currents). The analog signals are sent by two channels on the analog input/output module. 4.1.1 Characteristics (1) AH06XA-5A, an analog input/output module, is used according to practical application. CH0~CH3:
Inputs received by a channel can be either voltages or currents. CH4~CH5: Outputs sent by a channel can be either voltages or currents. (2) High-speed conversion The conversion speed is 150 μs a channel. (3) High accuracy Conversion accuracy: (The ambient temperature is 25°C. The number of output voltages/currents which are averaged is 100.) Input: The error is ±0.1% of an input voltage, and ±0.1% of an input current. Output: The error is ±0.02% of an output voltage, and ±0.06% of an output current. (4) A scale range can be set by means of software. Users can set a scale range in ISPSoft.
A scale range is a range of digital values to which a range of analog values corresponds, or a range of digital values corresponding to a range of analog values. (5) A module can be set by means of utility software. HWCONFIG is built-in utility software in ISPSoft. Users can set modes and parameters in HWCONFIG to complete hardware configuration without spending time writing a program to set registers corresponding to functions.
4.2 Specifications and Functions 4.2.1 Specifications Electrical specifications 4-2 Module name AH06XA-5A Number of analog 4 inputs 2 outputs inputs/outputs Analog-to-digital Voltage input/Current input/Voltage output/Current output conversion Supply voltage 24 V DC (20.4 V DC~28.8 V DC) (-15%~+20%) Connector type Removable terminal block Conversion time 150 us/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 the ground: 500 V DC Isolation between an analog circuit and the ground:
500 V DC Isolation between an analog circuit and a digital circuit: 500 V DC Isolation between the 24 V DC and the ground: 500 V DC Isolation