Titus FFDE - Page 10

10
IOM - FFDE
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IOM
FFDE / FFDER / FFDERA
Communication Specifications
Overview:
• MODBUS RTU protocol over RS485 (serial)
• 9600 baud rate, word length is 8, parity is none(n), stop bits=1
• 255 unique address values selectable by DIP switch settings
• (recommended network node capacity 200 nodes)
• Slew rate limited transceivers for improved network performance MODBUS Register Summary Table
DO NOT USE CROSSOVER CABLES. THIS MAY DAMAGE THE CONTROL CARD OR RENDER IT NON-OPERATIONAL.
To reset non-volatile registers to factory default values, write 170 (AA hex) to Register 14, and then cycle power.
Note: Register 24 may be read in network mode to determine the value of 0-10VDC signal that may be connected. For example, a pressure transducer
may be connected to indicate unit interal static pressure.
1
2
6
9
10
12
14
1
1
RUN/STOP
DEMAND
SPEED
STATUS
DEFAULT SPEED
CURRENT SPEED
DEFAULT RUN/STOP
RW
RW
RW
RW
R
R
R
0-100
0-100
0-100
0,1
0,1
0,5-2000
see detail
%
RPM
50
-
-
RAM
RAM
LIVE
LIVE
LIVE
EEPROM
EEPROM
power up from REG 14
power up from REG 10
applies to network only
applies in network mode only
Register
Name
R/W Values & Defaults
Units Origin
Comments
24
7
0-1000
LIVE
-
ANA1
Onboard Pot 0-1000=0-100%
0-1000
LIVE
-
ANA2
0-10V input 0-1000=0-10VDC
R
R