176 • Process Data Architecture for MODBUS/TCPAnalog Output ModulesWAGO-I/O-SYSTEM 750ETHERNET TCP/IP4 Channel Analog Input Modules750-453, -455, -457, -459, -460, -468, (and all variations),753-453, -455, -457, -459Input Process ImageByte DestinationOffset High Byte Low Byte Remark0 D1 D0 Measured Value Channel 11 D3 D2 Measured Value Channel 22 D5 D4 Measured Value Channel 33 D7 D6 Measured Value Channel 45.2.4 Analog Output ModulesThe hardware of an analog output module has 16 bits of measured analog dataper channel and 8 bits of control/status. However, the coupler/controller withMODBUS/TCP does not have access to the 8 control/status bits. Therefore,the coupler/controller with MODBUS/TCP can only access the 16 bits ofanalog data per channel, which are grouped as words and mapped in Intelformat in the Output Process Image.When digital output modules are also present in the node, the analog outputdata is always mapped into the Output Process Image in front of the digitaldata.2 Channel Analog Output Modules750-550, -552, -554, -556, -560, -585, (and all variations),753-550, -552, -554, -556Output Process ImageByte DestinationOffset High Byte Low Byte Remark0 D1 D0 Output Value Channel 11 D3 D2 Output Value Channel 2
