Xytronix Research & Design ControlByWeb X-16s User manual

X-16s™ Users Manual
X-16s User Manual Revisions
Revision Description
1.0 Initial release
1.1 Added further information about entering slope and offset settings
Page 2 Xytronix Research & Design, Inc.

X-16s™ Users Manual Introduction
Section 1: Introduction
The X-16s™ e pansion module is used in conjunction with the X-600M™ controller. The X-16s has
eight, 0-5V, analog inputs. The X-16s employs a 24-bit A/D converter and can make both single or
differential voltage measurements. A 5.0V reference output can be used to power potentiometers or
other resistance sensing sensors. The X-16s is ideal for measuring precision analog voltages in
industrial environments. One or more X-16s e pansion modules can be connected to a X-600M control
module with a ribbon cable. The ribbon cable provides both power and communications.
The X-600M is a multifunction web-enabled industrial I/O controller. It performs control, logic, and
monitoring functions similar to that of a Programmable Logic Controller (PLC). However, unlike a PLC,
the X-600M is designed for web-based applications from the ground up. No add-on software or
hardware is required. The X-600M can be fully configured, programmed and tested using its built-in web
server. The web setup pages are intuitive and easy to use and do not require special programming skills.
The X-600M together with the X-16s provide an easy, fle ible and reliable way to monitor sensors and
devices over a network. The X-16s is suitable for use with pressure sensors, flow meters, current
transducers and position sensors – anywhere where precision analog voltage sensing is required.
The X-16s' inputs can be used to trigger email alerts based on a voltage level and can be used to control
the relay contacts of other ControlByWeb™ products (such as WebRelay™) that are located at a remote
location.
Xytronix Research & Design, Inc. Page 3

Introduction X-16s™ Users Manual
1.1 Features
•Eight analog input channels (can be configured as eight single ended inputs, four differential inputs, or a
combination of both
•Full 0 to 5V input range (input range can be scaled by using e ternal resistors)
•24-bit, ∑∆ ADC
•10uV resolution
•4-20mA inputs (using e ternal 250-ohm resistors)
•Removable terminal connectors (included) simplify making wiring connections
•Apply a different slope and offset for each raw voltage reading (via X-600M)
•Built-in web server (via X-600M) provides simple, web based configuration and control
•Custom applications can monitor the X-16s (via X-600M) with simple XML formatted status
•Modbus/TCP protocol (via X-600M) provides interoperability with devices and software from other
manufacturers
•Set high/low alarms (via X-600M) for analog inputs which can send out alert emails and control remote
ControlByWeb devices.
1.2 The X-16s onnectors & Indicators
Analog Inputs
The X-16s has eight analog inputs. Four analog ground (Agnd) terminals provide convenient connection
points for making sensor wiring connections. The X-16s can be setup to input either eight single-ended
analog signals, four differential analog signals, or a combination both.
Reference Output
Two 5.0V reference terminals can be used to power resistance sensing sensors such as potentiometers
and bridge sensors. The reference output can provide up to 50ma (the two reference terminals are
connected together internally). When resistance sensors are e cited (powered) from the 5.0V reference
output, the measurement will be ratio-metric with the reference. With ratio-metric measurements the
absolute voltage (and error) of the reference is removed from the measurement accuracy.
Expansion Bus
The e pansion bus allows for a family of e pansion modules to be connected directly to the X-600M
without the need for an Ethernet switch. The cable can be a daisy chain with multiple connectors. The
ribbon cable e pansion bus provides both power and communications connections.
Power Supply
The e pansion bus can provide up to 1.7 Amps for powering up to 32 e pansion modules; however, the
ma imum number of e pansion modules depends on the module type and power source attached to the
X-600M.
The X-16s employs modern switch-mode power supply. With this type of power supply the current draw
decreases as the voltage increases; therefore, you can add more e pansion modules by using a 24-volt
Page 4 Xytronix Research & Design, Inc.

X-16s™ Users Manual Introduction
power supply than you can with a 12-volt power supply. See the X-600M User Manual for more details.
Indicators
The green Power LED indicator is illuminated whenever the module is powered. To identify the module
during installation, the X-600M can send a blink command which will cause the power LED to blink for
three seconds.
1.3 Part Numbers and Accessories
Accessory Description Part Number
X-16s 8-channel analog input module, 0-5VDC inputs X-16s
Spare onnector 14-position, screw-terminal connector X-1803691
Xytronix Research & Design, Inc. Page 5

Installation and Connections X-16s™ Users Manual
Section 2: Installation and onnections
Installation consists of mounting the X-16s and connecting it to an X-600M controller with a 10-conductor
ribbon cable. Programming and testing is done by using a web browser to configure the web pages,
inputs, and outputs for your specific needs.
2.1 Installation Guidelines
•This unit must be installed by qualified personnel.
•This unit must not be installed in unprotected outdoor locations.
•This unit must not be used for medical, life saving purposes, or for any purpose where its failure
could cause serious injury or the loss of life.
•This unit must not be used in any way where its function or failure could cause significant loss or
property damage.
2.2 Mounting
X-16s can be mounted to a standard (35mm by 7.55mm) DIN-Rail. Normally e pansion modules are
mounted to the left side (embossed logo side of the enclosure) of the X-600M controller so that the
ribbon cable doesn't cover the power connector. The X-16s should be located in a clean, dry location
where it is protected from the elements. Ventilation is recommend for installations where high ambient
air temperatures are e pected to be high. See Appendix D: Mechanical Information for additional
mechanical details.
2.2.1 DIN-Rail Mounting
Attach the X-16s to the DIN-Rail by hooking the top hook on the back of the enclosure to the DIN-Rail
and then snap the bottom hook into place. To remove the X-16s from the DIN-Rail, use a flat-head
screwdriver. Insert the screw driver into the notch in the release tab and pry against the enclosure to
release the bottom hook.
Page 6 Xytronix Research & Design, Inc.

X-16s™ Users Manual Installation and Connections
2.3 Making onnections
AUTION: Make sure the power is shut off before making connections.
AUTION: Miswiring or misconfiguration could cause permanent damage to the X-16s, the
equipment to which it is connected, or both.
A removable terminal connector is provided for making the power connections. The correct wiring
procedure is as follows:
1. Make sure power is turned off.
2. Remove the terminal connector from the X-16s and make wiring connections to the terminals.
This technique avoids stressing the internal components while torquing the screws.
3. Reconnect the terminal connector.
4. Apply power.
It is recommended that any load (device to be controlled) not be connected to the e pansion modules
until after the X-600M has been configured and tested. By doing this, wiring and configuration mistakes
will not cause the load device to turn on une pectedly.
Make certain the wires are properly inserted into to the terminals and that the screws are tight.
Wire Specification:
Use wire rated for 75ºC (min) for connections to the terminal blocks
Connector Specifications:
Type: 14-position, removable, 3.81 mm pitch
Connection wire: Use wire rated for 75ºC (min) for connections to the terminal blocks
Stripping Length: 7mm
Connection capacity: 1.5mm2 stranded, 1.5mm2 solid
Conductor minimum: 30AWG (UL/CUL)
Conductor ma imum: 14 AWG (UL/CUL)
Conductor Type: Copper
Tightening torque: 0.22 Nm (min), 0.25 Nm (ma )
Xytronix Research & Design, Inc. Page 7

Installation and Connections X-16s™ Users Manual
12-Pin onnector Pinout
Terminal Description
+5Vref +5.0V reference output, 50mA ma imum
+5Vref +5.0V reference output, internally connected to above
Ain1 Analog Input 1 (0-5V) or Differential Ain1+
Ain2 Analog Input 2 (0-5V) or Differential Ain1-
Agnd Analog Ground
Ain3 Analog Input 3 (0-5V) or Differential Ain3+
Ain4 Analog Input 4 (0-5V) or Differential Ain3-
Agnd Analog Ground
Ain5 Analog Input 5 (0-5V) or Differential Ain5+
Ain6 Analog Input 6 (0-5V) or Differential Ain5-
Agnd Analog Ground
Ain7 Analog Input 7 (0-5V) or Differential Ain7+
Ain8 Analog Input 8 (0-5V) or Differential Ain7-
Agnd Analog Ground
Page 8 Xytronix Research & Design, Inc.

X-16s™ Users Manual Installation and Connections
2.4 Analog Input onnections
The analog inputs must be in the range of 0.0V to 5.0V. Analog sensors that provide an output voltage
in the range of 0 to 5 volts can be connected directly to the X-16s module. Voltages outside this range
will be clamped internally by the X-16s to 0.0 and 5.0V respectively. The inputs are internally protected
with a 1K ohm resistor and a pair of over-voltage steering diodes.
For some applications it may be necessary to add e ternal resistors to scale the input to a value
compatible with the X-16s. In the case of a sensor whose output levels are higher than 5 volts, a simple
voltage divider can be used to scale down the output. The following diagram shows a voltage divider
circuit for a 0-10V sensor. In the e ample resister values for R1 and R2 are chosen so that Vout will
have a 0 to 5 volt range.
Generally, you can choose a 10K Ohm resistor for R2 and then calculate the value of R1 using the
following formula.
Vout = Vin * (R2 / (R1 + R2))
To determine the proper resister value to use in the e ample above, use the ma imum output of the
sensor (10 VDC) as Vin in the equation, the ma imum input value of the X-16s (5 VDC) as Vout, and
R2=10K Ohms. Solving for R1 gives R1=10K ohms.
R1=10K, R2=10K
As another e ample, if the ma imum output voltage of the sensor is 15VDC, choose R2=10K. Solving
for R1 gives R1=20K ohms.
The input bias current of the X-16s is relatively low, such that the X-16s will work with input circuits with
an impedance of up up to 10K ohms with negligible error.
Xytronix Research & Design, Inc. Page 9

Installation and Connections X-16s™ Users Manual
The slope and offset for the voltage divider must calculated and entered into the setup pages of the X-
600M. The general term for the Slope is:
Slope = (Y2-Y1)/(X2-X1)
For the 10V input e ample:
Slope = (10Vin – 0Vin)/(5Vout – 0Vout) = 2V/V
Once the slope is determined, calculate the offset using the Y=mX+b linear equation where b is the
offset.
0Vout = 2V/V * 0Vin + Offset
Offset = 0V – (2V/V * 0V) = 0
To configure the X-600 with the new slope and offset values, navigate to the I/O > Analog Input screen.
Click the Edit button of the desired analog input channel. Enter the new Slope, Offset and Units values.
Click Update to submit the changes.
Page 1 Xytronix Research & Design, Inc.