Johnson Controls Penn System 450 Series - Page 21

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 21
• End Point value (EP) is the maximum deviation from the target value
(Setpoint). The control system applies maximum output at the EP to drive the
process back toward the SP. The SP and EP define the analog output’s
proportional band.
• Output at Setpoint value (OSP) is the signal strength level of the analog
output when the input sensor is at Setpoint (SP). The OSP is expressed as a
percentage (0 to 100%) of the full scale output.
• Output at Endpoint value (OEP) is the signal strength level of the analog
output when the input sensor is at the End Point (EP). The OEP is expressed as
a percentage (0 to 100%) of the full scale output.
Note: System 450 analog outputs that reference the differential control sensor
(Sn-d) use a Differential Setpoint (dSP) and Differential End Point (dEP) to
define the output’s proportional band. See Differential Control on page 25
for more information.