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Analog output block, Analog output block -11 – Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual User Manual

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Publication 1757-UM006A-EN-P - May 2002

The Fieldbus Communication Model 1-11

Analog Output Block

Figure 1.5 Functional Schematic for Analog Output Function Block

AO

Transducer

OUT

Simulate

SIMULATE

Out Convert

PV_SCALE
XD_SCALE

PV Convert

XD_SCALE
PV_SCALE

Output

CHANNEL

OUT

Mode

SHED_OPT

SP

CAS_IN

RCAS_IN

BKCAL_OUT

RCAS_OUT

Setpoint

SP_RATE_DN
SP_RATE_UP

SP_HI_LIM

SP_LO_LIM

Failsafe

FSAFE_TIME

FSAFE_VAL

READBACK

PV

BKCAL_OUT
RCAS_OUT

CAS_IN

RCAS_IN