>>>>>型號:AO845 模擬量輸出模塊 周期性地執(zhí)行自診斷

【功能描述】

AO845/AO845A 模擬量輸出模塊具有 8 個單極性模擬輸出通道，適用于單路或冗余應(yīng)用。該模塊周期性地執(zhí)行自診斷。模塊診斷包括：

如果向輸出電路提供電壓的過程電源電壓過低，或輸出電流小于輸出設(shè)定值且輸出設(shè)定值> 1 mA（開路），則報告外部通道錯誤（僅在活動通道上報告）。

如果輸出電路不能給出正確的電流值，則會報告內(nèi)部通道錯誤。在冗余對中，模塊將由 ModuleBus 主站命令進入錯誤狀態(tài)。

如果出現(xiàn)輸出晶體管錯誤、短路、校驗和錯誤、內(nèi)部電源錯誤、狀態(tài)鏈路錯誤、看門狗或錯誤的 OSP 行為，則會報告模塊錯誤。

特點和優(yōu)勢

8 個 4...20 mA 通道

適用于單個或冗余應(yīng)用程序

1 組 8 個通道與地隔離

模擬輸入短路至ZP或+24 V

 >>>>>型號:AO845 模擬量輸出模塊 周期性地執(zhí)行自診斷

【英文介紹】

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

>>>>>型號:AO845 模擬量輸出模塊 周期性地執(zhí)行自診斷