CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER – INSTRUCTION MANUAL 5–7
Note
Setpoints can be changed via the serial ports regardless of the state of the setpoint
access feature or the state of an input switch assigned to setpoint access.
To change the setpoint access code, enable setpoint access and perform the steps as
outlined below:
If an attempt is made to change a setpoint when setpoint access is disabled, the
SETPOINT
ACCESS: DISABLED message is displayed to allow setpoint access to be enabled. Once
setpoint access has been enabled, the PQMII display will return to the original setpoint
message.
If the control option is installed and one of the switches is assigned to “Setpoint Access”,
the setpoint access switch and the software setpoint access will act as a logical ‘AND’. That
is, both conditions must be satisfied before setpoint access will be enabled. Assuming the
setpoint access switch activation is set to closed, the following flash messages will appear
depending upon the condition present when the
ENTER key is pressed.
5.2.4 Serial Ports
PATH: SETPOINTS Ö S1 PQMII SETUP ÖØ COM1 RS485 SERIAL PORT
Table 5–1: Setpoint Access Conditions
Condition Displayed Message
Access Code Switch Input
Incorrect Open
SETPOINT ACCESS OFF
ENTER ACCESS CODE
Incorrect Closed
SETPOINT ACCESS OFF
ENTER ACCESS CODE
Correct Open
CANNOT ALTER SETTING
ACCESS SW. DISABLED
Correct Closed
NEW SETPOINT
STORED
CHANGE SETPOINT
ACCESS CODE: YES
ENTER SETPOINT
ACCESS CODE: 4
RE-ENTER SETPOINT
ACCESS CODE: 4
SAVCCCD.CDR
ENTER ENTER
COM1 RS485 [Z]
SERIAL PORT
MODBUS COMMUNICATION
ADDRESS: 1
Range: 1 to 255 in steps of 1
MESSAGE
COM1 BAUD RATE:
19200 BAUD
Range: 1200, 2400, 4800, 9600, and
19200 baud
MESSAGE
COM1 PARITY: NONE
Range: None, Even, Odd
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