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Specifications Specifications 3/8/2017
Products: RTD-DI-16
Functionalities: I/O Communication, Engineering, Hardware, Smoke Control
Product version: 1.6, 1.7, 1.8, 1.9

I/O Module RTD-DI-16

I/O Module RTD-DI-16

I/O Module RTD-DI-16

Introduction

The RTD-DI-16 is a RTD/digital input, 16 channel I/O module.

The inputs of RTD-DI-16 can be configured to read seven different types of inputs:

  • 2-wire RTD temperature

  • 3-wire RTD temperature

  • 2-wire RTD resistive

  • 3-wire RTD resistive

  • Digital

  • Counter

  • Resistive

RTD-DI-16 supports 3-wire configurations that consume two input channels. The number of channels available range between 8 to 16 depending on the number of 3-wire configurations that are used.

The inputs can be used for sensing multiple dry contact inputs in applications, such as equipment status monitoring or alarm point monitoring. As counter inputs, they are commonly used in energy metering applications.

The RTD inputs are ideal for temperature points in a building control system.

Function

Modular and scalable system

The modules are part of a modular system that delivers power and communications on a common bus. Connecting modules is a one-step process: just slide the modules together using the built-in connectors.

Patented two-piece design

Each module can be separated from its terminal base to allow the site to be wired prior to the installation of the electronics. The patented locking mechanism serves as handles for removing the module from its base. All critical components have a protective cover that permits convection cooling to occur.

Two-piece design

Two-piece design

Hot-connect and Hot-swap

Because critical applications require 24-hour operation, Schneider Electric designed the I/O modules for hot-connection of terminal bases and hot-swapping of the modules to their bases. This design ensures continuous power and communication during service operations.

Auto-addressing

The auto-addressing feature eliminates the need for setting DIP switches or pressing commission buttons. Each module automatically knows its order in the chain and assigns itself accordingly – significantly reducing engineering and maintenance time.

Simple DIN-rail installation

Fasteners easily snap into a locked position for panel installation. The fastener has a quick-release feature for easy DIN-rail removal.

Efficient terminal management

The I/O module terminals are clearly labeled and protected by transparent covers. The input and output terminals are at the top and bottom of each module and are accessible for maintenance without removing the module. The StruxureWare Building Operation WorkStation software can generate custom as-built labels for each module. Pre-perforated letter and A4 size label sheets are available as an accessory.

Accommodates multiple row panel installations

The SmartStruxure devices use built-in connectors for single row connectivity, side by side. If a panel size requires multiple rows, extension cords are available.

LED status indicators

The I/O module has a status indicator that denotes the health and status of the module.

Each input channel has a dedicated two color status LED. The LED can be configured to display either red or green for each input state.

Protection

Protection components on the inputs protect against high-voltage short-duration transient events.

Specifications
Input channels
16
3-wire RTDs require 2 inputs
DC input supply power
1.6 W
DC input supply voltage
24 VDC
Environment
Ambient temperature, operating
0 to 50 °C (32 to 122 °F)
Ambient temperature, storage
-20 to +70 °C (-4 to +158 °F)
Maximum humidity
95 % RH non-condensing
Material
Plastic rating
UL94-5VB
Enclosure
PC/ABS
Enclosure rating
IP 20
Mechanical
Dimensions including terminal base
90 W x 114 H x 64 D mm (3.6 W x 4.5 H x 2.5 D in.)
Weight including terminal base
0.269 kg (0.59 lb)
Weight excluding terminal base
0.146 kg (0.32 lb)
Terminal base
TB-IO-W1
Agency compliances
Emission
RCM; EN 61000-6-3; FCC Part 15, Sub-part B, Class B
Immunity
EN 61000-6-2
Safety
EN 61010-1; UL 916 C-UL US Listed
Product
EN 61326-1
Smoke control product safety
UL 864
Part numbers
RTD-DI-16, I/O module
16 RTD/digital inputs
SXWRTD16X10001
TB-IO-W1, terminal base for I/O module
(Required for each I/O module)
SXWTBIOW110001
Accessory part numbers
DIN-RAIL-CLIP, DIN-rail end clip
package of 25 pieces
SXWDINEND10001
PRINTOUT-A4-W1, printout sheets for terminal labels
A4 sheet size, 100 sheets, 18 labels per sheet
SXWTERLBL10011
PRINTOUT-LTR-W1, printout sheets for terminal labels
Letter sheet size, 100 sheets, 16 labels per sheet
SXWTERLBL10012
S-CABLE-L, S-cable extension cord for the I/O bus, L shaped connectors
1.5 m
SXWSCABLE10002
S-CABLE-L, S-cable extension cord for the I/O bus, L shaped connectors
0.75 m
SXWSCABLE10003
Universal inputs
Absolute maximum ratings
-0.5 to +24 VDC
RTD temperature
Current source open circuit voltage
4 V
Reliability check
Yes
Supported RTDs
Pt100, Pt1000, Ni1000, and LG-Ni1000
Pt100
Range
-50 to +150 °C (-58 to +302 °F)
Accuracy
+/-0.3 °C (+/-0.54 °F)
Resolution
0.03 °C (0.05°F)
Pt1000
Range
-50 to +150 °C (-58 to +302 °F)
Accuracy
+/-0.2 °C (+/-0.36 °F)
Resolution
0.03 °C (0.05 °F)
Ni1000
Range
-50 to +150 °C (-58 to +302 °F)
Accuracy
+/-0.1 °C (+/-0.18 °F)
Resolution
0.03 °C (0.05 °F)
LG-Ni1000
Range
-50 to +150 °C (-58 to +302 °F)
Accuracy
+/-0.1 °C (+/-0.18 °F)
Resolution
0.03 °C (0.05 °F)
RTD temperature wiring
Maximum wire resistance
20 ohm/wire (40 ohm total)
Maximum wire capacitance
60 nF
The wire resistance and capacitance typically corresponds to a 200 m wire.
RTD resistive
Current source
4 V
Reliability check
Yes
100 ohm
Range
50 to 220 ohm
  
Including wiring resistance
Accuracy
+/-(0.08 + 2 x 10 -4 x R) ohm
R = resistance in ohm
Resolution
0.01 ohm
1,000 ohm
Range
500 to 2,200 ohm
  
Including wiring resistance
Accuracy
+/-(0.3 + 2 x 10 -4 x R) ohm
R = resistance in ohm
Resolution
0.1 ohm
RTD resistive wiring
Maximum wire capacitance
60 nF
Digital
Range
Dry contact switch closure or open collector/open drain, 24 VDC, 2.4 mA
Minimum pulse width
120 ms
LED polarity
Software selectable, if the LED is activated when the input is high or low
LED color
Red or green, software selectable
Counter
Range
Dry contact switch closure or open collector/open drain, 24 VDC, 2.4 mA
Minimum pulse width
20 ms
Maximum frequency
25 Hz
LED polarity
Software selectable, if the LED is activated when the input is high or low
LED color
Red or green, software selectable
Resistive
Range
0 to 15,000 ohm
Accuracy
+/-(3 + 6 x 10 -4 x R) ohm
R = resistance in ohm
Resolution
1 ohm
Current source open circuit voltage
4 V
Reliability check
Yes
Maximum wire capacitance
60 nF

For protection from excess current that could be produced by field wiring, follow these instructions:

  • Connect one RET terminal on each of the I/O modules to a common chassis/power ground rail in the control panel using a size 16 AWG, 1.3 mm, or larger wire.

  • Individual 24 VDC power sources to the field must be current limited to maximum of 4 amps for UL compliant installations, and no more than 6 amps in other areas.

  • For more information on wiring, see Hardware Reference Guide.

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