Azbil DCP31 - Commu nications

11-7
Chapter 11. SPECIFICATIONS
Item Specification
Event/
Time
event
Output
Time events 1 to 5 Open-collector
output
External supply voltage: 10 to 29Vdc
Max. load current: 70mA/load
OFF leakage current: 0.1mA
ON residual voltage: 1.6V max.
Event 1 to 3 settings
Time event 1 to 5
settings
Event type PV type events: PV, deviation, absolute value
deviation, SP, MV, MFB
Controller status events:
RUN+HOLD+FAST+END, READY,
RUN, HOLD, FAST, END, G.Soak
standby, MANUAL, auto-tuning
executing, constant-value
operation, MFB estimated position
control, sum of all alarms, PV
range alarm, controller alarms,
low battery voltage, setting on
console, ADV
Time events: Segment No. events (Time event 1
to 5 only)
Event standby ON/OFF selectable
Event hysteresis 0 to 200U (event types PV, deviation, absolute
value deviation or SP)
0.0 to 20.0% (event types MV or MFB)
Event ON delay 0 to 3600s
Commu-
nications
Communications
system
Communications
standard
RS-485
Network Multidrop (DCP31 provided with only slave node
functionality) 1 to 16 units max. (DIM), 1 to 31 units
max. (CMC, SCM)
Data flow Half duplex
Synchronization Start-stop synchronization
Interface system
Transmission system Balanced (differential)
Data line Bit serial
Signal line 5 transmit/receive lines (3-wire connection also
possible)
Transmission speed 4800, 9600bps
Transmission
distance
500m max. (total) (300m for MA500 DIM connec-
tion)
Other Conforming to RS-485
Display characters Char. bit count 11bits/character
Format 1 start bit, even parity, 1 stop bit; or 1 start bit, no
parity, and 2 stop bits
Data length 8bits
Isolation All inputs and outputs are completely isolated.
RS-485 communications can be performed by connecting to a computer equipped with an RS-485
interface or to Azbil Corporation MX200, MA500 (DK link II DIM) or CMC10 controllers.