6. Programming
6.3. Application program
R200
Resistance Temperature Detector 2MLF-RD4A User's Guide
119
September 2010
Honeywell
6.3 Application program
Monitoring program of °C temperature-converted and scaled value (‘assign fixed
points to I/O slot (64)’ option used).
Figure 75 – System configuration
Table 11 – Details of initial setting
Item
Details of Initial
Setting
Internal Memory
Address
Value to Write on Internal
Memory
Used CH
CH0, CH2
0
‘h005’ or ‘5’
Sensor type
Pt100 (0)
1–4
‘h0000’ or ‘0’
Temp. display unit
°C (0)
5
‘h0000’ or ‘0’
Filter value
0
6–9
‘h00C8’ or ‘200’
Scaling type
0
18
‘h0000’ or ‘0’
Scaling range
Max./Min.
Max: 32767
Min: -32768
19–26
Max: ‘h2710’or ‘10000’
Min: ‘h0000’ or ‘0’
Program description
1.
Temperature-converted value of CH0 and CH2 is output to D0 and D1 and scaled
value is output to D10 and D11 by the operation start bit (P00000). The scaled
output value for the temperature conversion range of -200 to 850°C is 0–10000.
Calculation formula is as shown below: