Vhandy Technology
GC-4674 user manual
Terminal
Serial number
Meaning
Output1
1
The first group of voltage signal is positive
GND1
2
Group 1 voltage signal negative
Output2
3
Group 2 voltage signal positive
GND2
4
Group 2 voltage signal negative
Output3
5
Group 3 voltage signal positive
GND3
6
Group 3 voltage signal negative
Output4
7
Group 4 voltage signal positive
GND4
8
Group 4 voltage signal negative
Table 2.1 Indicators of GC-4674 module
2.3 System status indicator
The GC-4674 module has 2 running indicators to indicate the running status of the
device. The specific indication function of the indicator light is shown in Table 2.2.
When the indicator is on, the status of the GC-4674 module is shown in Table 2.3.
Indicator light
Colour
Indicating status
RUN
Green
Operation instructions
Table 2.2 Indicators of GC-4674 module
When the output signal of the GC-4674 module is activated, the running indicator will
light up.
Indicator light
Colour
Indicating status
RUN
Always bright
Output signal activated
not bright
The output signal is not activated
Table 2.3 Indicator status of GC-4674 module
2.4 Use in combination with PLC400/510 series
GCAN-PLC-400/510 supports programming in five languages. The following uses 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-4674 module.
When GC-4674 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, 0V~+10V corresponds to 0~4095, so the second
channel’s The starting address is Q2.0. When the user uses more than one GC-4674
module, the second GC-4674 needs to be defined from "Q8.0", because each 4674 has
4 channels; "%" (percent sign) is the direct variable start symbol : ":" (semicolon) is a
variable or type separator. Use the symbol variable AO to write the signed integer
from the %Q0.0 address. AT stands for the address of variable access and the
