Ref: REFLEX/SCANFLEX MANUAL
EDITION 1: JULY ’97 29
Pr.53 Manual Scanning (D=0)
0 = Automatic Scanning
1 = Manual Scanning
This facility has been included mainly for commissioning and fault finding purposes.
It allows the system to continually stay on one point whilst checks are carried out.
The normal scanning process is stopped when manual scan is in operation. The
system fault relay (Relay 4 on the Controller) will be in alarm mode and the
corresponding LED will be on.
Manual scan is enabled by Pr.53 = 1 and then re-entering 'RUN' mode.
To select a specific point to be monitored press keys 1-9 or 0. These correspond to
measuring points 1-10. To de-select manual scan set Pr.53 = 0 or power down then up
again.
NOTE:
When in manual scan, the gain display if called for by pressing the "TEST" key, is
continuous. To return to level display press "CE" key.
Module System Status Check does not operate during manual scan.
WHEN IN MANUAL SCAN ONLY THE POINT YOU ARE ON IS BEING
MONITORED, ALL OTHER POINTS OF MEASUREMENT WILL RESET,
ALONG WITH ANY ALARMS THAT ARE ON THOSE POINTS. THE SYSTEM
WILL NOT CONTROL THE OTHER POINTS UNTIL IT RETURNS TO RUN
MODE.
Serial Communications
(Refer to Hycontrol for separate leaflet)
The serial communication ports are configured for 9600 baud rate, 8 bit data, 1 stop
bit and even parity. The customers system must be configured to suit this.
Pr.62 Serial Communication Enable (Channel 1 - RS232) (D=1)
Channel 1 (RS232) 1 = Commissioning System (default)
2 = Polled data transfer
The data which is transferred is: Level or Distance or Percentage for each point
Temperature for each point
Alarm status for each point
Group alarm status for scanner applications
Rate of change of level for single point applications.
Channel 2 (RS485) Is permanently enabled for polled data transfer but for scanner
applications this channel is used to communicate with the
external modules SM-10, SA-10 and SR-10 and is not available
to communicate with the customers internal devices.
To Next Page
Loading...
Need help?
General
