9 Application Instructions API 150-199 160 Operands: RTC D : Comparison result S 1 : “Hour” for comparison S 2 : “Minute” for comparison S 3 : “Second” for comparison S : Current time of Explanations: 1. Range of S 1 : K0 ~ K23; range of S 2 and S 3 : K0 ~ K59 2. S will occupy 3 consecutive devices; D will occupy 3 consecutive points. 3. See the specifications of each model for their range of use. 4. S 1 , S 2 and S 3 are compared with the present values of “hour”, “minute” and “second” starting from S . The comparison result is stored in D . 5. S is the “hour” of the current time (K0 ~ K23) in RTC; S + 1 is the “minute” (K0 ~ K59) and S + 2 is the “second” (K0 ~ K59). 6.
S is read by TRD instruction and the comparison is started by TCMP instruction. If S exceeds the range, the program will regard this as an operation error and the instruction will not be executed, M1067 and M1068 = On and D1067 will record the error code 0E1A (hex). Program Example: 1. When X10= On, the instruction will compare the current time in RTC (D20 ~ D22) with the set value 12:20:45 and display the result in M10 ~ M12. When X10 goes from On to Off, the instruction will not be executed, but the On/Off stauts prior to M10 ~ M12 will remain. 2. Connect M10 ~ M12 in series or in parallel to obtain the result of ≧ , ≦ , and ≠ .
X10 DVP-PLC Application Manual 9-68 Mnemonic Operands Function TCMP P Time Compare Type OP Bit Devices Word Devices Program Steps X Y M S K H KnX KnY K nM KnS T C D E F TCMP, TCMPP: 11 steps S 1 * * * * * * * * * * * S 2 * * * * * * * * * * * S 3 * * * * * * * * * * * S * * * D * * * PULSE 16-bit 32-bit EH3 E SV2 S EX SS EH3 ES EX SS SA SX SC EH SV EH3 SV2 ES EX SS SA SX SC EH SV SA SX SC EH SV SV2 TCMP K12 K20 K45 D20 M10 M10 ON when 12:20:45 > M11 ON when 12:20:45 = M12 ON when 12:20:45 TCMP K12 K20 K45 D20 M10