Reading Normalized Data - Panasonic FP3 Technical Manual

4-2. Reading Normalized Data

4-2. Reading Normalized Data
The temperature data measured by the thermocouple input unit is automatically converted to the values from K0 to
K4000. This data is referred to as "normalized data." The normalized data for each channel is stored in its shared
memory as:
Shared memory
address (word units)
K0
K1
K2
K3
J Normalized data reading program
The normalized data stored in the shared memory of the thermocouple unit is read by executing the F150
(READ)/P150 (PREAD) instructions as follows.
Condition:
- Thermocouple input unit slot position: Slot 2 position
- Number of enabled channels: 4 channels (CH0 to CH3)
- Type of data read: Normalized data (addresses K0 through K3 of the shared memory)
- CPU registers for storing normalized data: DT10 to DT13
Program example
R9010
F150 READ, K2, K0, K4, DT10
Slot number
Starting address of the
shared memory read
Read word number
J Normalized data update timing
Normalized data in the shared memory are updated immediately after data conversion processing for the enabled
channels. The enabled channels can be set with the dip switches on the rear of the unit. If number of enabled channels
will enable the unit to shorten the updating time.
- Normalized data updating time per channel : 500 ms
- Total time required for updating normalized data is calculated using the formula:
500 ms × number of enabled channels
32
Descriptions
Normalized data
(Data range: K0 to K4000)
Transfer
destination
CH0 CH1
conversion conversion
0.5 s
1 s
1.5 s
Address
K0
Normalized data for CH0
K1
Normalized data for CH1
K2
Normalized data for CH2
K3 Normalized data for CH3
CH0
CH1
CH2
CH3
CH2 CH3
conversion conversion
2 s
Shared memory update