>>>>>型号:AO845 模拟量输出模块 周期性地执行自诊断
【功能描述】
AO845/AO845A 模拟量输出模块具有 8 个单极性模拟输出通道，适用于单路或冗余应用。该模块周期性地执行自诊断。模块诊断包括：
如果向输出电路提供电压的过程电源电压过低，或输出电流小于输出设定值且输出设定值> 1 mA（开路），则报告外部通道错误（仅在活动通道上报告）。
如果输出电路不能给出正确的电流值，则会报告内部通道错误。在冗余对中，模块将由 ModuleBus 主站命令进入错误状态。
如果出现输出晶体管错误、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，则会报告模块错误。
特点和优势
8 个 4...20 mA 通道
适用于单个或冗余应用程序
1 组 8 个通道与地隔离
模拟输入短路至ZP或+24 V
>>>>>型号:AO845 模拟量输出模块 周期性地执行自诊断
【英文介绍】
The AO845/AO845A analog output module has 8 unipolar analog output channels for single or redundant applications. The module performs self-diagnosis periodically. Module diagnostics include:
If the process supply supplying voltage to the output circuit is too low, or if the output current is less than the output setpoint and the output setpoint is > 1 mA (open), an external channel error is reported (only on the active channel).
If the output circuit does not give the correct current value, an internal channel error is reported. In a redundant pair, the module will enter an error state by the ModuleBus master command.
A module error is reported if an output transistor error, short circuit, checksum error, internal power error, status link error, watchdog, or faulty OSP behavior occurs.
Characteristics and advantages
Eight fours... 20 mA channel
Suitable for single or redundant applications
A group of 8 channels are isolated from the ground
Analog input shorted to ZP or +24 V
>>>>>型号:AO845 模拟量输出模块 周期性地执行自诊断
