Mitsubishi — 2.3 Numbering and Functions of External Input/Output Contacts [X] / [Y]

2 Functions of Devices in DVP-PLC  EH3 series MPU: Note 1: High-speed input points (X0~X17) on the MPU: The 200KHz input points on 16EH3 are Ch0(X0/X1) and Ch1(X4/X5); the 200KHz input points on 20EH3 are Ch0(X0/X1) and Ch1(X4/X5); the 20KHz input point on 20EH3 is Ch2(X10/X11); the 200KHz input points on other MPUs are Ch0(X0/X1), Ch1(X4/X5), Ch2(X10/X11) and Ch3(X14/X15). X2~X17 which are not listed above are 10KHz input points. Note 2: High-speed output points (Y0~Y17) on the MPU: The 200KHz output points on 16EH3, 20EH3 and 32EH3 are Ch0 (Y0) and Ch1 (Y2); the 200KHz output points on 40EH3, 48EH3, 64EH3, and 80EH3 are Ch0 (Y0/Y1), Ch1 (Y2/Y3), Ch2 (Y4), and CH3 (Y6).

Other output points which are not listed are 10KHz output points. Note 2: The high-speed input points Ch0 (X0/X1) and Ch1 (X4/X5) on DVP32EH00M3 are 200KHz differential input points; Ch2 (X10/X11) and Ch3 (X14/X15) are 200KHz open collector input points; other input points are 10KHz open collector input points. The high-speed output points Ch0 (Y0/Y1) and Ch1 (Y2/Y3) are 200KHz differential output points; other output points are 10KHz open collector output points. Note 4: The I/O points on I/O extension units follow the I/O points on MPUs. The input points on DVP-16EH3 and DVP-20EH3 start from X20 and output points from Y20. The I/O points on I/O extension units are numbered in sequence.

The maximal input number is X377, and the maximal output number is Y377.  Input relay X0 ~ X377 The numbering of input relays (or input terminals) is in octal form. EH series MPU can have up to 256 points and the range is: X0 ~ X7, X10 ~ X17, …, X370 ~ X377.  Output relay Y0 ~ Y377 The numbering of output relays (or output terminals) is also in octal form. EH2 series MPU can have up to 256  Functions of input contact X points and the range is: Y0 ~ Y7, Y10 ~ Y17, …, Y370 ~ Y377. The input contact X is connected to the input device and reads the input signals into the PLC. There is no limitation on the times of using contact A or B of input contact X in the program.

On/Off of the input contact X only changes with On/Off of the input device. You cannot use the peripheral devices (HPP or WPLSoft) to force On/Off of the input contact X. The special relay M1304 in SS/ES/EX/SA/SX/SC/EH2/SV/EH3/SV2 series MPU allows the peripheral devices HPP or WPLSoft to set up On/Off of the MPU input contact X, but the PLC will not be able to receive external input signals at this time.  Functions of output contact Y Output contact Y sends out On/Off signals to drive the load connected to output contact Y. There are two types of output contacts, relay and transistor.

There is no limitation on the times of using contact A or B of output contact Y in the program, but the No. of output coil Y can only be used once in the program; otherwise according to the scan principle of the PLC program, the output status will be determined by the circuit of the last output Y in the program.

DVP-PLC Application Manual 2-12 DVP-32EH3 I/O Extension Model DVP-16EH3 DVP-20EH3 DVP-40EH3 DVP-48EH3 DVP-64EH3 DVP-80EH3 (Note 3) Unit (Note 4) Input X (Note 1) X0~X7 (8 points) X0~X13 (12 points) X0~X17 (16 points) X0~X27 (24 points) X0~X27 (24 points) X0~X37 (32 points) X0~X47 (40 points) X※~X377 Output Y (Note 2) Y0~Y7 (8 points) Y0~Y7 (8 points) Y0~Y17 (16 points) Y0~Y17 (16 points) Y0~Y27 (24 points) Y0~Y37 (32 points) Y0~Y47 (40 points) Y※~Y377