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Appendix A. Single-Ended Measurements

A-6

instruction has one repetition. If the instruction has two repetitions, then every

other Input Location will be over written. This effect is illustrated in Table A-

2. The program fragment in Example A-4 generated this effect.

The multiplexer control instructions are not included in the

example program fragment.

TABLE A-2. Values in Input Storage; with Input Location Index and

without Step Loop Index Instruction

Pass 18 19 20 21 22 23

First TC_1 TC_2

Second TC_3 TC_4

Third TC_5 TC_6

By adding Instruction 90 (Step Loop Index) with a value of two, the

measurements will be stored sequential in Input Storage. See Table A-3 and

the program fragment in Example A-5.

The multiplexer control instructions are not included in the

example program fragment.

TABLE A-3. Values in Input Storage; with Input Location Index and

Step Loop Index Instruction

Pass 18 19 20 21 22 23

First TC_1 TC_2

Second TC_3 TC_4

Third TC_5 TC_6

Example A-3. Single Ended Thermocouples, Input Location Not Indexed

01: Beginning of Loop (P87)

1: 0 Delay

2: 6 Loop Count

02: Thermocouple Temp (SE) (P13)

1: 2 Reps

2: 21 2.5 mV 60 Hz Rejection Range

3: 1 SE Channel

4: 1 Type T (Copper-Constantan)

5: 1 Ref Temp (Deg. C) Loc [ RefTemp ]

6: 18 Loc [ TC_1 ]

7: 1.0 Mult

8: 0.0 Offset

03: End (P95)

NOTE

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 36

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