SPASI23模块卡件,SPASI23参数说明
模拟电流/电压输入/输出模块ALG442提供四个差分输入通道和两个单端输出通道。每个通道可以使用机器版软件配置为以下范围：▪ 默认值为0至+10伏（单极）。▪ -10至+10伏（双极）▪ 0至20 mA▪ 4至20 mA输入通道也可以配置为4-20 mA增强模式。该模块可以安装在任何具有串行连接器的输入/输出插槽中RX3i或90-30系列系统。
SPASI23模块卡件模块功能输出可以配置为保持最后状态或重置为低如果系统电源中断，则其范围结束。输出也可以是配置为在应用程序发出命令时以斜坡模式运行程序在斜坡模式下，输出通道转换为一个新值一段时间，而不是立即获取新值。可以为所有输入通道和开路设置高报警限值和低报警限值每个输出都可以向CPU报告故障（电流输出模式频道RX3i机架中的ALG442模块支持现场固件升级。隔离+24 VDC电源该模块需要150 mA外加来自用户提供的+24的回路电流VDC电源LED模块OK LED提供以下模块状态信息：开启：状态正常，模块已配置；关闭：无背板电源或软件未运行（看门狗计时器超时）；连续快速闪烁：未从CPU接收到配置数据；缓慢闪烁，然后关闭：通电诊断失败或遇到代码执行错误。用户电源LED指示外部24 VDC电源在规格范围内。
Analog Current/Voltage Input/Output module, ALG442, provides four
differential input channels and two single-ended output channels. Each
channel can be configured with the Machine Edition software for one of the
following ranges:
▪ 0 to +10 volts (unipolar), default.
▪ -10 to +10 volts (bipolar)
▪ 0 to 20 mA
▪ 4 to 20 mA
Input channels can also be configured for 4 - 20 mA Enhanced mode.
This module may be installed in any I/O slot that has a serial connector in an
RX3i or Series 90-30 system.
Module Features
Outputs can be configured to either Hold Last State or to reset to the low
end of their range if system power is interrupted. Outputs can also be
configured to operate in ramp mode on command from the application
program. In ramp mode, the output channel transitions to a new value over
a period of time, rather than taking the new value immediately.
High and low alarm limits can be set for all input channels and an open-wire
fault (current output modes) can be reported to the CPU for each output
channel.
ALG442 modules in RX3i racks support firmware upgrades in the field.
Isolated +24 VDC Power
This module requires 150 mA plus loop current(s) from a user-supplied +24
VDC supplyLEDs
The MODULE OK LED provides module status information as follows:
ON: status is OK, module configured;
OFF: no backplane power or software not running (watchdog timer timed out);
Continuous rapid blinking: configuration data not received from CPU;
Slow blinking, then OFF: failed power-up diagnostics or encountered code execution error.
