Flowserve D30 Installation, Operation & Maintenance Manual page 21

Parameter Description
SP Setpoint
READBACK Position
POS_D Digital position
CHECKBACK
RCAS_IN Remote Cascade
RCAS_OUT Remote Cascade
Status Byte Table
MSB
0 0 0 0 1 0
0 0 0 0 1 1
0 0 0 1 0 0
0 0 0 1 1 1
1 0 0 0 0 0
1 0 0 0 0 0
1 0 0 0 1 0
1 0 0 0 1 0
1 0 0 0 1 1
1 0 0 0 1 1
Example SP = 43.7% and 50%
Float Hex
43.7 42 2E CC CD
50.0 42 48 00 00
The SP has 5 bytes, 4 bytes for the float value
and one status byte. The status byte needs to be
128 (0x80Hex) or higher for the D30 to accept it.
The READBACK has 5 bytes, 4 bytes for the
float value and one status byte.
Returns actual position as a digital value with
definitions as below
0 = Not initialized
1 = Closed
2 = Opened
3 = Intermediate
Detailed information of the device, coded bit wise.
Several messages can occur at the same time.
The RCAS_IN has 5 bytes, 4 bytes for the
float value and one status byte.
The RCAS_OUT has 5 bytes, 4 bytes for
the float value and one status byte.
LSB Meaning
x x Not connected
x x Device failure
x x Sensor failure
x x Out of service
x x Good - Non cascade
0 0 OK
0 1 Below low limit Lo
1 1 Above high limit Hi
0 1 Lo-Lo
1 1 Hi-Hi
Status
80
80
D30 Digital Positioner
D30 info
PROFIbus PA module failure
No sensor value
AI Function Block in O/S mode
Measured value OK
All Alarm values used
Advisory alarm
Advisory alarm
Critical alarm
Critical alarm
21
FCD PMENIM0030-01-A5 – 05/18
4+1=5
4+1=5
4+1=5
4+1=5
BYTE
2
3