Green LED=Network Status
• Addressing Specications: Bulletin B2028 available
www.functionaldevices.com/pdf/bulletins/B2028_393243.pdf
NETWORK COMPATIBLE RELAY
IN4004
RIBTW24B-BCAO
Enclosed BACnet® MS/TP Network Relay Device; One Binary Output (20 Amp Relay SPDT + Override);
One Binary Input (Dry Contact, Class 2); One Analog Output (0-5 Vdc, 0-10 Vdc, or 4-20 mA), One
Analog Input (T2/T3 Thermistor / 0-5 Vdc / 0-10 Vdc); 24 Vac/dc Power Input; Optional End of Line
Resistor (EOL) Included.
Made in USA
Meets
“Buy American”
of ARRA 2009
REF
A(–)
B(+)
MS/TP
1 2 3 4 5 6 7 8 9 10 11 12
MS/TP
MSB
ADDRESS
AI
AI COM
RELAY
CONTROL
BAUD
LSB
RATE
J1: Jumper
for EOL
resistor
SPECIFICATIONS
# Relays & Contact Type:
Operating Temperature:
Network Communication:
ted Relay Life:
Expec
Humidity Range:
Operate Time:
Relay Status:
Binary Input Status:
Dimensions:
Approvals:
Housing Rating:
Gold Flash:
Relay Override:
Network Media:
Terminations:
Polarity:
Baud Rate:
Thermistor Select
Therm. +5V
Analog In
T3 Thermistor
T2 Thermistor
Not dened
5 V10 V
1 2
OPEN
AI Voltage
Select Switch
J2 J3
ON
ON
OFF
OFF
ON
OFF
ON
OFF
Power
24 Vac/dc
Red LED=Relay Status
One (1) SPDT Continuous Duty Coil
10 million cycles minimum mechanical
-30 to 140° F
5 to 95% (noncondensing)
18ms
Green LED
Red LED On = Relay Activated
Pink LED On = Activated
4.28˝ x 7.00˝ x 2.00˝ with .75˝ NPT Nipple
UL Listed, UL916, C-UL
UL Listed, NEMA 1, C-UL, CE Approved,
UL Accepted for Use in Plenum,
No
DIP Switch Control
Twisted Pair 22-24AWG, shielded
recommended
Functional Devices product installed at
both ends of the MS/TP network – Use
120 Ω end of line resistors. All other
cases – Follow instructions from the
device installed at the end of the
MS/TP network.
Network is polarity sensitive
9600, 19200, 38400, 57600, 76800,
115200 (DIP Switch Selectable)
(–)
(+)
0-5 Vdc
0-10 Vdc
Analog Output
J5: Install
for 0-10 V
Relay
Contacts
(–)
(+)
4-20 mA
Analog Output
N/O
N/C
}
COM
BI COM
Dry Contact
Pink LED=BI Status
BI
Binary Input
Contact Ratings:
20 Amp Resistive @ 277 Vac
20 Amp Magnetic Ballast @ 277 Vac
16 Amp Electronic Ballast @ 277 Vac (N/O)
10 Amp Tungsten @ 120 Vac (N/O)
1110 VA Pilot Duty @ 277 Vac
770 VA Pilot Duty @ 120 Vac
2 HP @ 277 Vac
1 HP @ 120 Vac
Power Input Ratings:
176 mA @ 24 Vac
150 mA @ 24 Vdc
Notes:
• Use a separate 24 Vac transformer, or
an isolated 24 Vdc power supply to
power-up this product.
•
Complete Installation Instructions:
Bulletin B1756 available on website.
www.functionaldevices.com/pdf/bulletins/
B1756_393218.pdf
• When connecting 24 Vac to both the RIB(s)
and a half-wave device, damage to device
can occur. Option 1: Use separate
transformers for each device. Option 2:
Add diode between devices, see Option 2
note below. ^^
Shown
With
Cover
Thermistor Specications:
• Thermistor Type 2 (T2) Precon 10 K @ 77°F (25°C)
PN ST-R24, Model 24, (or equivalent.) Thermistor Type 3
(T3) Precon 10 K @ 77°F (25°C) Model 3, (or equivalent.)
Thermistor not included.
•
-35 to 10°C range in 1° steps / -31 to 50°F range in 1.8° steps
10 to 32°C range in 0.1° steps / 50 to 90°F range in 0.18° steps
32 to 100°C range in 1° steps / 90 to 212°F range in 1.8° steps
BACnet® Details:
• This model utilizes: BO 1 (Relay output),
BI 1 (Dry contact binary input),
AI 1 (Analog input), AO 1 (Analog output)
• PIC Statement available on website.
http://www.functionaldevices.com/pdf/
pics/RIBTW24B-BCAO_PICS.pdf
Or scan QR code with your
smart phone.
on website.
0-5Vdc or 0-10 Vdc
Temperature,
Humidity, Pressure
Transducer
AI
AI Com
ANALOG OUTPUT ACCURACY AS A FUNCTION OF OUTPUT SPAN
USING STANDARD CONDITIONS *
Span 20% - 100% Span 10% - 100% Span 0% - 100%
Analog Output Voltage (0-5 Vdc; 0-10 Vdc) +/- 2% error +/- 5% error +/- 11% error
Analog Output Current (4-20 mA) +/- 2% error +/- 3% error +/- 12% error
* Standard Conditions:
Power Supply Input: 22 Vac/dc to 28 Vac/dc ; Loop Resistance (Analog Output 4-20 mA Loop): 530 Ohms max.
Load Resistance [Analog Output Voltage (0-5 Vdc, 0-10 Vdc)]: 10 K Ohms min. ; Ambient Temperature: -30 to 140° F
Analog
10K
Input
24 Vac
Option 2:
^^
RIBTW24B-BCAO
24 Vac/dc
Com
Add diode on 24 Vac power (Com) interconnection between devices.
Half-Wave Device
24 Vac
Com
Band on diode faces towards RIB(s).
071717
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