Vhandy Technology
GC-4642 user manual
Terminal
Serial number
meaning
Output1
1
Group 1 signal voltage output
GND1
2
Group 1 signal reference ground
Output2
3
Group 2 signal voltage output
GND2
4
Group 2 signal reference ground
Table 2.1 GC-4642 module indicator
2.3 System status indicator
The GC-4642 module has 4 operating indicators to indicate the operating status
of the device. The specific indication function of the indicator light is shown in
Table 2.2. When the indicator is on, the GC-4642 module status is shown in
Table 2.3.
Indicator light
Colour
Indication status
RUN
green
Operating instructions
Table 2.2 GC-4642 module indicator
When the output signal of the GC-4642 module is activated, the operation
indicator will light up.
Indicator light
Status
Indication status
RUN
Always on
Output signal activation
not bright
Output signal is not activated
Table 2.3 GC-4642 module indicator status
2.4 Use in combination with PLC400/510 series
GCAN-PLC-400/510 supports programming in five languages. The following
takes ST language as an example to introduce how to use GCAN-PLC-400 to
program and write the status of the analog output of the GC-4642 module.
When the GC-4642 module performs ST programming definition, it is
necessary to define the variable type, output signal position, start character,
separator, etc. For example: "AO AT%Q0.0:INT;", where "0.0" represents the
start address of the first channel, each channel occupies 2 bytes, 0~20mA
corresponds to 0~65535, so the start address of the second channel The starting
address is Q2.0. When the user uses more than one GC-4642 module, the
second GC-4642 needs to be defined from "Q4.0", because each 4642 has 2
channels; "%" (percent sign) is the direct variable start symbol : ":" (semicolon)
is a variable or type separator. Use symbolic variable AO to write unsigned
