9 Application Instructions API 150-199 161 Operands: S 1 : Lower bound of the time for comparison S 2 : Upper bound of the time for comparison S : Current time of RTC D : Comparison result Explanations: 1. S 1 , S 2 , and S will occupy 3 consecutive devices. 2. The content in S 1 must be less than the content in S 2 . 3. D will occupy 3 consecutive points. 4. See the specifications of each model for their range of use. 5. S is compared with S 1 and S 2 . The comparsion result is stored in D . 6. S 1 , S 1 +1, S 1 +2: The “hour”, “minute” and “second” of the lower bound of the time for comparison. 8. S , S +1, S +2: The “hour”, “minute” and “second” of the current time of RTC. 7.
S 2 , S 2 +1, S 2 +2: The “hour”, “minute” and “second”ond” of the upper bound of the time for comparison. 9. D0 designated by S is read by TRD instruction and the comparison is started by TZCP instruction. If S 1 , S 2 , and S exceed their ranges, 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). 10. When S S 1 and S S 2 , D will be On. When S > S 1 and S > S 2 , D + 2 will be On. In other occasions, D + 1 will be On. Program Example: When X10= On, TZCP instruction will be executed and one of M10 ~ M12 will be On.
When X10 = Off, TZCP instruction will not be executed and the status of M10 ~ M12 prior to X10 = Off will remain unchanged. X10 M10 ON when M11 ON when M12 ON when DVP-PLC Application Manual 9-69 Mnemonic Operands Function TZCP P Time Zone Compare Type OP Bit Devices Word Devices Program Steps X Y M S K H K nX KnY KnM K nS T C D E F TZCP, TZCPP: 9 steps S 1 * * * S 2 * * * S * * * D * * * PULSE 16-bit 32-bit EH3 SV2 ES EX SS EH3 ES EX SS SA SX SC EH SV EH3 SV2 ES EX SS SA SX SC E H SV SA SX SC EH SV SV2 TZCP D0 D20 D10 M10