1.功能简介 
1. Function Introduction 

1.1功能概述 
1.1 Function Overview 

GC-4642（2通道模拟量输出模块，0~20mA）可用于输出0~20mA范围内的信号。该端子模块能够为处理层提供分辨率为16位的电气隔离信号。GC-4642模块有2个两线制的输出端，特别适合安装在控制柜内以节省空间。GC-4642模块有一个公共接地电位端，电源触点被连接在一起。输出端的基准接地为0V电源触点，即GC-4642模块输出信号地与主控模块电源地同电位。 
GC-4642 (2-channel analog output module, 0-20mA) can be used to output signals within the range of 0-20mA. This terminal module can provide electrical isolation signals with a resolution of 16 bits for the processing layer. The GC-4642 module has two two-wire output terminals, making it particularly suitable for installation in control cabinets to save space. The GC-4642 module has a common ground potential terminal, and the power contacts are connected together. The reference ground of the output terminal is the 0V power contact, which means that the output signal ground of the GC-4642 module is at the same potential as the power ground of the main control module. 

1.2性能特点 
1.2 Performance Characteristics 

●输出点数为2个； 
●The output point count is 2; 
●信号电流为0~20mA； 
●The signal current is 0-20mA; 
●负载小于或等于400Ω（短路保护）； 
●Load less than or equal to 400 Ω (short-circuit protection); 
●精度（25℃）：±1%全量程； 
●Accuracy (25 ℃): ± 1% of full range; 
●测量分辨率为16位； 
●The measurement resolution is 16 bits; 
●转换时间约为3ms； 
●The conversion time is about 3ms; 
●电气隔离为1500 Vrms（GC-bus/信号电压）； 
●Electrical isolation is 1500 Vrms (GC bus/signal voltage); 
●过程映像中的位宽输出为2x 2字节； 
●The bit width output in the process image is 2x 2 bytes; 
●组态无地址设置，通过总线耦合器或控制器配置； 
●Configuration without address setting, configured through bus coupler or controller; 
●通过GCAN-PLC-3/4/5系列PLC主控模块或GCAN-8X00系列耦合器供电； 
●Powered by GCAN-PLC-3/4/5 series PLC main control module or GCAN-8X00 series coupler; 
●工作温度范围：-40℃~+85℃； 
●Working temperature range: -40 ℃~+85 ℃; 
●尺寸：长100mm*宽69mm*高12mm。 
●Size: Length 100mm * Width 69mm * Height 12mm. 

1.3典型应用 
1.3 Typical Applications 

●可根据指令对外输出标准的模拟量信号； 
●Can output standard analog signals to the outside according to instructions; 
●可用于阀门、闸门等控制设备的开度调节； 
● Can be used for adjusting the opening of control equipment such as valves and gates; 
●接入总线耦合器或控制器，实现模拟量信号的传送。 
●Connect to the bus coupler or controller to achieve the transmission of analog signals.

GC-4642设备使用手册链接
GC-4642 Equipment User Manual Link

www.gcgd.net/filedownload/2977849

如果您需要具体了解设备或者询价，可以加我微信或在线对话框联络。
If you need specific information about the equipment or inquire about the price,you can add me on WeChat or contact me through the online chat.