AH500 Module Manual 3.1 Overview An analog output module receives four/eight 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 the four/eight channels on the analog output module. 3.1.1 Characteristics (1) A module is selected according to practical application. AH04DA-5A: There are four channels. Outputs sent by a channel can be either voltages or currents. AH08DA-5A: There are eight channels. Outputs sent by a channel can be either voltages or currents. AH08DA-5B: There are eight channels. Outputs sent by these channels are voltages. AH08DA-5C: There are eight channels.
Outputs sent by these channels are currents. (2) High-speed conversion A digital signal is converted into an analog signal at a speed of 150 μs a channel. (3) High accuracy Conversion accuracy: The error is ±0.02% of an output voltage, and ±0.06% of an output current. (The ambient temperature is 25°C. The number of output voltages/currents which are averaged is 100.) (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 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.
3.2 Specifications and Functions 3.2.1 Specifications Electrical specifications 3-2 Module name AH04DA-5A AH08DA-5A AH08DA-5B AH08DA-5C Number of outputs 4 8 8 8 Analog-to-digital Voltage output/ Current output Voltage output/ Current output 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 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 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