KMC Controls FlexStat Operation Guide - Manual (Page 28)

FlexStat 28 Operation Guide, Rev. R
MS/TP Network Communication
Connect the EIA-485 MS/TP network wiring and set
the EOL switches accordingly. (See the Installation
Guide for wiring and end-of-line switch informa-
tion.)
From the FlexStat menus, adjust the device instance
number, the MAC address, and baud rate from the
defaults as necessary. Set the Max Master to the
minimum necessary for the network. See (Advanced)
BACnet Device Properties on page 17 and (Advanced)
Communications (BACnet) on page 14 .)
NOTE: The current FlexStat MAC address and
device instance numbers can be viewed in
the About menu. Each BACnet device on a
network must have a unique MAC address
and device instance.
Network Connection
IP/Ethernet Network Communication
Plug in an Ethernet cable into the (optional) RJ-45
jack on the back.
For IP and IP Foreign Device communications,
consult with the system administrator for the
appropriate settings for the IP Address, Subnet
Mask, Gateway, and UDP Port.
Ethernet communications are essentially plug-and-
play, and the MAC address is not changeable.
Only one protocol can be enabled at any time. See
(Advanced) Communications (BACnet) on page 14 .
EOL On EOL On Off Off Off
KMD-5624
Cable
KMD-5576
NOTE: For IP/Ethernet-enabled models, a FlexStat
in one of the Ethernet or IP modes must
(temporarily) be set for MS/TP mode (and
restarted) to communicate through the
data port at the bottom of the cover. See
(Advanced) Communications (BACnet) on
page 14 and Resetting the FlexStat on page 26 .
IN9
IN8
GND
IN7
+B
–A
IN4
IN3
GND
IN2
Common/–/C
Phase/ /R
Analog 9
GND 7–9
Analog 8
Analog 7
Relay 6
SC 4–6
Relay 5
Relay 4
Relay 3
SC 1–3
Relay 2
Relay 1
Outputs
(Wir
ing Cutout in Bac
kplate)
MS/TP
Network
Inputs
24 VAC
(Wiring is
dependent on
application)
Inputs
IP/Ethernet
Network
(Optional)
NOTE: IN1 and IN5–6 are
reserved for internal sensors
NOTE: SC = Switched
(relay) Common
PC Data Port Connection
The FlexStat is equipped with a PC data port located
at the bottom of the thermostat housing. This port
provides a temporary EIA-485 (formerly RS-485)
connection to the digital network for network setup
or troubleshooting.
To connect a computer to the port, a means of
converting the EIA-485 signal to a USB or EIA-232
(formerly RS-232) signal will be needed. For USB,
use a KMC KMD-5576 USB Communicator. For
EIA-232, use a third-party interface. (See the instruc-
tions included with those devices and software.) To
connect to the PC data port:
1. Connect the keyed, flat end of the KMD-5624
interface cable (included with the KMD-5576) to
the port on the bottom of the FlexStat.
2. Connect the modular plug of the cable to the
interface device that converts the EIA-485 signal
from the FlexStat into a USB or EIA-232 signal.
3. Connect the suitable cable from the interface
device to the computer’s serial or USB port.
Install any required software and configure the
port as necessary.
NOTE: To avoid faulty communication with the
KMD-5576 USB Communicator, the Max
Master number may need to be reduced
to the minimum required for the network
and the driver and latency settings on
the computer may need to be checked or
updated. See Troubleshooting on page 30 .