Rockwell Automation 9307 FactoryTalk EnergyMetrix User Manual

Page 326

Advertising
background image

FactoryTalk EnergyMetrix Software

326

S

Serial communication: RS232 offers point-to-point serial communication with only one

Powermonitor at a maximum distance of 50 feet. To communicate over distances
greater than 50 feet, or to communicate with multiple power monitors via the
same serial port, use RS485 serial communication. Using RS485 communication
requires either an external RS232-RS485 converter or an internal RS485 serial
card installed in the computer.

Setpoint, equal: An equal setpoint becomes active when the monitored parameter equals

the setpoint high limit. An equal setpoint becomes inactive when the monitored
parameter does not equal the setpoint high limit.

Setpoint, not equal: A not equal setpoint becomes active when the monitored parameter

does not equal the setpoint high limit. A not equal setpoint becomes inactive when
the monitored parameter equals the setpoint high limit.

Setpoint, over: An over setpoint becomes active when the monitored parameter exceeds

the high limit, and remains over the limit for longer than the number of seconds
specified in the Operate Delay setting. When a setpoint becomes active, it
operates the selected relay, unless the selected relay is NONE. If NONE, the
setpoint does not change any relay.An over setpoint becomes inactive when the
monitored parameter falls below the low limit, and remains below the limit for
longer than the number of seconds specified in the Release Delay setting. When a
setpoint becomes inactive, it releases the selected relay. (Bul. 1400 Powermonitor
only)

Setpoint, over forward: An over forward setpoint becomes active when the monitored

parameter exceeds the setpoint high limit in the positive direction, and remains
over the limit for longer than the time specified in the Operate Delay setting.
When a setpoint becomes active, it causes an action identified by the Action type
to occur and logs the occurrencein the event log. If the action energizes a relay or
sets an alarm bit, the action remains true until the setpoint becomes inactive. An
over forward setpoint becomes inactive when the monitored parameter falls below
the setpoint low limit in the positive direction, and remains below the limit for
longer than the time specified in the Release Delay setting.

Setpoint, over reverse: An over reverse setpoint becomes active when the monitored

parameter exceeds the setpoint high limit in the negative direction, and remains
over the limit for longer than the time specified in the Operate Delay setting.
When a setpoint becomes active, it causes an action identified by the Action type
to occur and logs the occurrence in the event log. If the action energizes a relay or
sets an alarm bit, the action remains true until the setpoint becomes inactive. An
over reverse setpoint becomes inactive when the monitored parameter falls below
the setpoint low limit in the negative direction, and remains below the limit for
longer than the time specified in the Release Delay setting.

Advertising