DVP-ES3 Series Programming Manual Example 3 1. Function code 05 (16#05): the PLC writes the state into a bit device. The device is set to ON in this example. _6 2. The ES3 Series CPU module is connected to the DVP-ES2 series PLC. D10.0 is ON and Y0 in the DVP-ES2 Series PLC is also ON. When SM96 and M0 are ON, the PLC can set the state of Y0. The following table lists the operands for the MODRW instruction. 6-540 Operand Description Device S1 Unit address 1 S2 Function code 16#0005 S3 Device address 16#0500 S Register for reading and writing the data D10.0 n Data length (not used with this function code) 1