AO845A-eA 模拟输出

描述

AO845A-eA 模拟输出

AO845A-eA模拟输出模块用于单个或冗余应用，具有8个单极模拟输出通道。模块循环进行自诊断。模块诊断包括:

如果给输出电路供电的过程电源电压过低，或者输出电流小于输出设定值且输出设定值> 1ma(开路)，则报告外部通道错误(仅在有源通道上报告)。

如果输出电路不能给出正确的电流值，则报告内部通道错误。在冗余对中，模块将由ModuleBus主模块命令进入错误状态。

输出晶体管错误，短路，校验和错误，内部电源错误，状态链路错误，看门狗或错误的OSP行为报告模块错误。

AO845A-eA 模拟输出

The AO845A-eA Analog Output Module for single or redundant applications has 8 unipolar analog output channels. The module performs self-diagnostic cyclically. Module diagnostics include:

External Channel Error is reported (only reported on active channels) if the process power supply that supply voltage to output circuitry is too low, or the output current is less than the output set value and the output set value > 1 mA (open circuit).

Internal Channel Error is reported if the output circuit can not give the right current value. In a redundant pair the module will be commanded to error state by the ModuleBus master.

Module Error is reported in case of Output Transistor Error, Short Circuit, Checksum Error, Internal Power Supply Error, Status Link Error, Watchdog or Wrong OSP behavior.