AO845 模擬輸出模塊適用于單個(gè)或冗余應(yīng)用

如果輸出電路不能給出正確的電流值,則報(bào)告內(nèi)部通道錯(cuò)誤。在冗余對(duì)中,模塊總線主站將命令模塊進(jìn)入錯(cuò)誤狀態(tài)。

如果出現(xiàn)輸出晶體管錯(cuò)誤、短路、校驗(yàn)和錯(cuò)誤、內(nèi)部電源錯(cuò)誤、狀態(tài)鏈路錯(cuò)誤、看門狗或錯(cuò)誤的 OSP 行為,則會(huì)報(bào)告模塊錯(cuò)誤。

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描述

AO845 模擬輸出模塊適用于單個(gè)或冗余應(yīng)用

AO845/AO845A 模擬輸出模塊適用于單個(gè)或冗余應(yīng)用,具有 8 個(gè)單極性模擬輸出通道。該模塊循環(huán)執(zhí)行自我診斷。模塊診斷包括:

如果向輸出電路供電的工藝電源過低,或者輸出電流小于輸出設(shè)定值和輸出設(shè)定值>1 mA(開路),則報(bào)告外部通道錯(cuò)誤(僅在有源通道上報(bào)告)。

如果輸出電路不能給出正確的電流值,則報(bào)告內(nèi)部通道錯(cuò)誤。在冗余對(duì)中,模塊總線主站將命令模塊進(jìn)入錯(cuò)誤狀態(tài)。

如果出現(xiàn)輸出晶體管錯(cuò)誤、短路、校驗(yàn)和錯(cuò)誤、內(nèi)部電源錯(cuò)誤、狀態(tài)鏈路錯(cuò)誤、看門狗或錯(cuò)誤的 OSP 行為,則會(huì)報(bào)告模塊錯(cuò)誤。

8 個(gè)通道,電流為 4…20 mA

適用于單個(gè)或冗余應(yīng)用程序

1 組 8 個(gè)通道與地面隔離

模擬輸入短路保護(hù)至ZP或+24 V

HART直通通信

AO845 模擬輸出模塊適用于單個(gè)或冗余應(yīng)用

The AO845/AO845A analog output module is suitable for single or redundant applications with eight unipolar analog output channels. The module performs a self-diagnosis cycle. Module diagnostics include:

If the process power supply feeding the output circuit is too low, or if the output current is less than the output set value and the output set value 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 bus master will command the module to enter an error state.

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.

8 channels, current of 4… 20 mA

Suitable for single or redundant applications

1 group of 8 channels isolated from the ground

Analog input short-circuit protection to ZP or +24 V

HART direct communication

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