Watlow 8PID Controller Manual de usuario descargar pdf (Pagina 35)

Example:

Command: O7V0512CR suspends control and sets output to 50%

Response:O7V0512CRLF control is suspended, output fixed at 50%

To initiate PID control:

O(n)P0000CR O is the output indicator

n is the loop number

P is the start control indicator

0000 is a filler in the command

Example:

Command: O5P0000CR turn on PID control for loop 5

Response: O5P0213CRLF control is on for loop 5 output value is 213 out

of 1024 or 20.8% full scale.

The output value with control on is always changing as calculated by the control

algorithm.

To query the value of the analog output (control on or off):

O(n)QCR

Example:

Command: O7QCR query analog output/status loop 7

Response: O7V0512CRLF control is suspended value is set at 50%

Example:

Command: O5QCR query analog output/status loop 5

Response: O7P0786CRLF control is on, output currently is 786 (78.6% full

scale)

To set the time proportioning cycle time:

T(1)R(abcde)CR T is a time indicator

1 indicates general command, all loops

R indicates cycle time

abcde is a multiplier of the 55ms base

The range is from 0 to 29,999. The cycle time is calculated as 55ms plus 55ms times the

number entered. Thus the range is 0 to 29999 corresponds to 55ms to about 1650

seconds.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 54 55

Sin comentarios

Watlow 8PID Controller Manual de usuario Pagina 35