Emerson Fisher D4

Instruction Manual
D103597X012
D4 Valve with easy-Drive Actuator
October 2017
26
Table 8. Register Summary (continued)
DATA LEGAL FUNCTION CODES REGISTER (PHYSICAL) TYPE R/W DESCRIPTION
Reserved 03 – Read Holding Reg 40031 (0x001E) UINT16 R Read will return power up default of 0
Valve type
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40032 (0x001F) UINT16 R/W 1 = D3, 2 = D4
Control Type 03 – Read Holding Reg 40033 (0x0020) UINT16 R 0 = On/Off, 1 = Proportional
Control Source
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40034 (0x0021) UINT16 R/W
0 = Modbus RTU Register Commands, 1 =
Local Control
Loss of control input/comms
default position
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40035 (0x0022) UINT16 R/W
Value 0-100 = 0-100% Position
Valve 101 - Last Position
Deadband
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40036 (0x0023) UINT16 R/W
Value 0-100 = 0-100% Level of hysteretic
dead band applied to position control
demand
Low travel cutoff
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40037 (0x0024) UINT16 R/W Blanking from zero position in percent
Communications Timeout
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40038 (0x0025) UINT16 R/W
Timeout in seconds before loss of
communications state is asserted
Communications Address
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40039 (0x0026) UINT16 R/W
Modbus address in the range 1-247
(Default = 1)
Communications Baudrate
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40040 (0x0027) UINT16 R/W
0 = 300 Baud, 1 = 600 Baud, 2 = 1200 Baud, 3
= 2400 Baud, 4 = 4800 Baud, 5 = 9600 Baud,
(Default) 6 = 19200 Baud, 7 = 38400 Baud
Parity
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40041 (0x0028)
UINT16
(BOOL)
R/W
0 = Odd, 1 = Even, 2 = None
(“None” available in version 4.21 only)
Reset Statistics
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40042 (0x0029)
UINT16
(BOOL)
R/W 0 = Reset Idle, 1 = Reset Active
Local Control Mode
03 – Read Holding Reg
06 – Write Single Reg
16 – Write Multiple Reg
40043 (0x002A) UINT16 R/W
On/Off
0 = L2e dual dry contact
1 = Single dry contact
Proportional
0 = 1-5V
1 = 4-20 mA
UINT16 – unsigned 16 bit variable, can take value 0-65535.
UINT32 – unsigned 32 bit variable, can take value 0-4294967295.
(Reserved) – registers used for development use only.
† - 32bit register contains data that spans two registers – reads and write of data needs to be performed within the
same Modbus command function to ensure coherency of data.