Honeywell HC900 - Ramp; Table 6-23 Ramp Parameters

Parameters accessible with Function Code 03, 06,10h
Ramp
Revision 13 HC900 Process Controller Communications User Guide 81
April 2017
6.13 Ramp
Summary
This section contains parameters and addresses for the Ramp.
See the Ramp Register Maps in Table 6-1 for starting and ending addresses (hex) for Ramp #2 through
Ramp #8 Map Addresses.
The Modbus Ramp number address for a Ramp can also be obtained from the Process Control Designer printout
of "Block Modbus Addresses".
Function Code Support:
Reads – Function Code 3
Writes – Function Code 16 (10 hex) for preset of multiple registers (e.g., for floating point)
Writes – Function Code 6 for presetting an integer value
For custom addresses view or print a report in HC Designer.
Table 6-23 Ramp Parameters
Fixed
Address
(hex)
Fixed
Register
(decimal)
Parameter Name
Access
Notes
6400
25601
PV
R
Floating Point in Engineering Units
6402
25603
Ramp Output
R
Floating Point in Engineering Units
6404
25605
Ramp Default
R
Floating Point in Engineering Units
6406
25607
Ramp Lag Time
R/W
Floating Point in Seconds
6408
25609
Ramp Transfer Up
R/W
Floating Point in Engineering Unit/Second
640A
25611
Ramp Transfer Dn
R/W
Floating Point in Engineering Unit/Second
640C
25613
Ramp #1-4 Enable
R
Bit Packed:
Bit 0: Ramp #1 Enable: 0=NO, 1=YES
Bit 1: Ramp #2 Enable: 0=NO, 1=YES
Bit 2: Ramp #3 Enable: 0=NO, 1=YES
Bit 3: Ramp #4 Enable: 0=NO, 1=YES
Bit 4-15: Unused
640D
25614
Ramp #1-4 Override
Status
R
Bit Packed
Bit 0: Ramp #1 Override Active: 0= NO, 1=YES
Bit 1: Ramp #1 Override to High Limit:
0=Low Limit, 1= High Limit
Bit 2: Ramp #2 Override Active: 0= NO, 1=YES
Bit 3: Ramp #2 Override to High Limit:
0=Low Limit, 1= High Limit
Bit 4: Ramp #3 Override Active: 0= NO, 1=YES
Bit 5: Ramp #3 Override to High Limit:
0=Low Limit, 1= High Limit
Bit 6: Ramp #4 Override Active: 0= NO, 1=YES
Bit 7: Ramp #4 Override to High Limit:
0=Low Limit, 1= High Limit
Bit 8-15: Unused
640E
25615
Ramp #1 Output
Scale High
R/W
Floating Point in Engineering Units