DSDI110A 57160001-AAA 瑞典ABB贝利 进口全新原装模块

DSDI110A 57160001-AAA 瑞典ABB贝利 进口全新原装模块

DSDI110A 57160001-AAA 瑞典ABB贝利 进口全新原装模块

由于外界恶劣环境如电磁干扰、高温、低温、过电压、欠电压、振动等引起的故障。这类故障，只要不引起系统部件的损坏，一旦环境条件恢复正常，系统也随之恢复正常。但对PLC而言，受外界影响后，内部存储的信息可能被破坏。

如果能限制偶发性故障的发生条件，如果能使PLC在恶劣环境中不受影响或能把影响的后果限制在范围，使PLC在恶劣条件消失后自动恢复正常，这样就能提高平均故障间隔时间；

如果能在PLC上增加一些诊断措施和适当的保护手段，在故障出现时，能很快查出故障发生点，并将故障限制在局部，就能降低PLC的平均修复时间。

为此，各PLC的生产厂商在硬件和软件方面采取了多种措施，使PLC除了本身具有较强的自诊断能力，能及时给出出错信息，停止运行等待修复外，还使PLC具有了很强的抗干扰能力。

DSDI110A 57160001-AAA 瑞典ABB贝利 进口全新原装模块

Due to the external harsh environment such as electromagnetic interference, high temperature, low temperature, overvoltage, undervoltage, vibration caused by the fault. This type of failure, as long as it does not cause damage to system components, once the environmental conditions return to normal, the system will also return to normal. However, for the PLC, after external influence, the internal stored information may be destroyed.

If you can limit the occurrence conditions of accidental failures, if you can make the PLC in the harsh environment is not affected or can limit the consequences of the impact to the range, so that the PLC automatically returns to normal after the bad conditions disappear, so that the average time between failures can be improved;

If you can add some diagnostic measures and appropriate protection means on the PLC, when the fault occurs, you can quickly find the fault point, and the fault is limited to the local, you can reduce the average repair time of the PLC.

To this end, the PLC manufacturers have taken a variety of measures in hardware and software, so that in addition to PLC itself has a strong self-diagnosis ability, can give error information in time, stop running and wait for repair, but also make PLC has a strong anti-interference ability.