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50 ï Fieldbus Coupler 750-341Process imageWAGO-I/O-SYSTEM 750ETHERNET TCP/IP4 Channel Digital Output Modules750-504, -516, -519, -531Output Process ImageBit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0controlsDO 4Channel4controlsDO 3Channel3controlsDO 2Channel2controlsDO 1Channel18 Channel Digital Output Module750-530Output Process ImageBit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0controlsDO 8Channel8controlsDO 7Channel7controlsDO 6Channel6controlsDO 5Channel5controlsDO 4Channel4controlsDO 3Channel3controlsDO 2Channel2controlsDO 1Channel13.1.4.3.3 Analog Input ModulesThe hardware of an analog input module has 16 bits of measured analog dataper channel and 8 bits of status. However, the Ethernet coupler does not haveaccess to the 8 status bits. Therefore, the Ethernet coupler can only access the16 bits of analog data per channel, which are grouped as words and mapped inIntel format in the Input Process Image.When digital input modules are also present in the node, the analog input datais always mapped into the Input Process Image in front of the digital data.1 Channel Analog Input Module750-491Input Process ImageByte DestinationOffsetHigh Byte Low ByteRemark0 D1 D0 Measured Value U D1 D3 D2 Measured Value U ref |
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