3 Basic Instructions Explanations: 1. When the RST instruction is driven, the actions of the designated devices are: 2. If RST instruction is not being executed, the status of the designated device will stay intact. Program Example: Ladder diagram: Instruction code: Operation: LD X0 Loading in contact A of X0 X0 Note: DVP-EH3 series PLCs whose version is 1.40 and DVP-SV2 series PLCs whose version is 1.20 support the operands Y, M, and S. These operands can be qualified by E or F, e.g. RST Y5E2. Explanations: When TMR instruction is executed, the designated coil of the timer will be On and the timer will start to time.
When the set value in the timer is reached (present ≥ set value), the contact will be: Program Example: Ladder diagram: Instruction code: Operation: LD X0 Loading in contact A of X0 T5 timer X0 Remarks: See the specification of each model for the range of operand T.
DVP-PLC Application Manual 3-9 Mnemonic Function Program steps Controllers ES EX SS SA SX SC EH2 SV EH3 SV2 RST Clear the contacts or the registers 1 X0 ~ X377 Y0 ~ Y377 M0 ~ M4095 S0 ~ S1023 T0 ~ T255 C0 ~ C255 D0 ~ D9999 E0 ~ E7 F0 ~ F7 Operand - Controllers ES EX SS SA SX SC EH2 SV EH3 SV2 Device Status Y, M, S, Coil and contact will be set to “Off” T, C Present values of the timer or counter will be set to “0”, and the coil and contact will be set to “Off” D, E, F The content will be set to “0”.
RST Y5 RST Y5 Resetting contact Y5 Mnemonic Function Program steps Controllers ES EX SS SA SX SC EH2 SV EH3 SV2 TMR 16-bit timer 4 T-K T0 ~ T255, K0 ~ K32,767 Operand T-D T0 ~ T255, D0 ~ D9999 Controllers ES EX SS SA SX SC EH 2 SV EH 3 SV 2 NO (Normally Open) contact Open collector NC (Normally Closed) contact Close collector TMR T5 K1000 TMR T5 K1000 Set value in timer T5 as K1,000