2 Functions of Devices in DVP-PLC EH2/SV series MPU: DVP-PLC Application Manual 2-4 Type Device Item Range Function Relay (bit) X External input relay X0 ~ X377, 256 points, octal Total 512 points Corresponds to external input points Y External output relay Y0 ~ Y377, 256 points, octal Corresponds to external output points M Auxiliary relay General purpose M0 ~ M499, 500 points (*2) Total 4,096 points The contact can be On/Off in the program.
Latched M500 ~ M999, 500 points (*3) M2000 ~ M4095, 2,096 points (*3) Special purpose M1000 ~ M1999, 1,000 points (some are latched) T Timer 100ms T0 ~ T199, 200 points (*2) T192 ~ T199 is for subroutine T250~T255, 6 accumulative points (*4) Total 256 points Timer indicated by TMR instruction. If timing reaches its target, the T contact of the same No. will be On. 10ms T200 ~ T239, 40 points (*2) T240 ~ T245, 6 accumulative points (*4) 1ms T246 ~ T249, 4 accumulative points (*4) C Counter 16-bit counting up C0 ~ C99, 100 points (*2) C100 ~ C199, 100 points (*3) Total 253 points Counter indicated by CNT (DCNT) instruction. If counting reaches its target, the C contact of the same No.
will be On. 32-bit counting up/down C200 ~ C219, 20 points (*2) C220 ~ C234, 15 points (*3) 32-bit high-speed counter C235 ~ C244, 1-phase 1 input, 10 points (*3) C246 ~ C249, 1-phase 2 inputs, 4 points(*3) C251 ~ C254, 2-phases 2 inputs, 4 points (*3) S Step Initial step point S0 ~ S9, 10 points (*2) Total 1,024 points Used for SFC. Zero return S10 ~ S19, 10 points (used with IST instruction) (*2) General purpose S20 ~ S499, 480 points (*2) Latched S500 ~ S899, 400 points (*3) Alarm S900 ~ S1023, 124 points (*3) Register (word data) T Present value of timer T0 ~ T255, 256 points When the timing reaches the target, the contact of the timer will be On.
C Present value of counter C0 ~ C199, 16-bit counter, 200 points C200 ~ C254, 32-bit counter, 53 points When the counting reaches the target, the contact of the counter will be On. D Data register General purpose D0 ~ D199, 200 points, (*2) Total 10,000 points Memory area for data storage; E, F can be used for index indication. Latched D200 ~ D999, 800 points (*3) D2000 ~ D9999, 8,000 points (*3) Special purpose D1000 ~ D1999, 1,000 points Index indication E0 ~ E7, F0 ~ F7, 16 points (*1) N/A File register K0 ~ K9,999 (10,000 points) (*4) Expanded register for data storage.
Pointer N For master control loop N0 ~ N7, 8 points Control point for main control loop P For CJ, CALL instructions P0~P255, 256 points Position index for CJ and CALL I Interruption External interruption (*5) I00□(X0), I10□(X1), I20□(X2), I30□(X3), I40□(X4), I50□(X5), 6 points (□ = 1, rising-edge trigger , □ = 0, falling-edge trigger ) Position index for interruption subroutine.
Timed interruption I6□□, I7□□, 2 points(□□ = 01~99ms) time base = 1ms I8□□, 1 point (□□ = 05~99, time base = 0.1ms) Interruption inserted when high-speed counter reaches target I010, I020, I030, I040, I050, I060, 6 points Pulse interruption I110, I120, I130, I140, 4 points Communication interruption I150, I160, I170, 3 points Frequency measurement card interruption I180, 1 point