Honeywell HC900 - Manual (Page 89)

Revision 10 HC900 Hybrid Controller Communications User Guide 81
12/07
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 Hybrid 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