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VersaTRAK RTU User M anual 

Page 12 of 31  

Last Revised: 05/23/02 

SIXNET 

••••

 Box 767 

••••

 Clifton Park, NY 12065 USA 

••••

 +1 (518) 877-5173 

••••

 FAX +1 (518) 877-8346 

••••

 [email protected]

 

 

Mini-VersaTRAK 
Discrete Inputs 

The Mini-VersaTRAK RTU has four on-board discrete input channels that accept DC signals 
from 10 to 30 volts  

 

DC Input Wiring 

 

One wire from each of the four input signals is connected to a single common terminal. Up to 
four  signals may be connected to the Mini-VersaTRAK RTU in sourcing or sinking 
configurations. Refer to the diagram below for sample wiring connections. 

 

Discrete Input 

Group Isolation 

 

The  four  discrete inputs are optically isolated (in groups of four) from each other and from the 
Mini-VersaTRAK circuitry and expansion I/O modules. 

 

Sinking or 

Sourcing Wiring 

 

DC inputs are typically wired in a sourcing configuration as shown in the upcoming 
diagram. Mini-VersaTRAK DC input channels will read either DC sinking or sourcing 
wiring. To configure sinking DC wiring, connect the positive power input  to the COM 
terminal for the four channels. 

 

Counter 

Feature 

 

All four discrete input channels have an input count accumulator feature. If this feature is 
enabled  (in  the  SIXNET I/O Tool Kit), an analog input register will report a unipolar 
(unsigned) 16-bit count value that increments on each OFF to ON transition of the 
corresponding  input.  The  maximum count input rate is 100 Hz (6000 pulses/min). These 
accumulations initialize at zero each  time power is cycled. They cannot be reset under 
software control.

 

 

Mini-VersaTRAK On-board Discrete Input Connections 

Содержание Mini-VersaTRAK

Страница 1: ...on 3 Power and ST Bus Wiring 9 Section 4 Discrete Inputs 11 Section 5 Discrete Outputs 13 Section 6 VT PB8 Discrete I O Board 15 Section 7 Analog Inputs 16 Section 8 Analog Outputs 18 Section 9 Commun...

Страница 2: ...tained from SIXNET Buyer will prepay all freight charges to return any products to the repair facility designated by SIXNET This limited warranty does not cover losses or damages that occur in shipmen...

Страница 3: ...nts can be added to any VersaTRAK or Mini VersaTRAK RTU by using the VT PB8 expansion board This board accepts single point plug in modules in any combination The VT PB8 connects to the RTU through a...

Страница 4: ...r to the on line help in each program for details SIXNET I O Tool Kit The SIXNET I O Tool Kit is a configuration calibration and maintenance tool for VersaTRAK and Mini VersaTRAK RTUs Use the SIXNET I...

Страница 5: ...VersaTRAK RTU See Section 9 If you have a VersaTRAK Packaged System a factory cable ST CABLE PF has been supplied Fabricate and install RS232 RS422 and RS485 cables as needed See Section 9 If you are...

Страница 6: ...our system When prompted select configure the communication devices and protocol servers Resave your project file Then choose the Run command from the Operations menu to load the map into your compute...

Страница 7: ...another but space can be left between modules to accommodate other DIN rail mounted components such as terminal blocks End clamps are recommended to restrict side to side movement Upcoming figures sho...

Страница 8: ...8 of 31 Last Revised 05 23 02 SIXNET Box 767 Clifton Park NY 12065 USA 1 518 877 5173 FAX 1 518 877 8346 support sixnetio com VersaTRAK Mini VersaTRAK RTU Dimensions VT PS 024 01N Power Supply Dimensi...

Страница 9: ...nd Fusing The VT PS 024 01N power supply operates on 90V to 260V sinusoidal AC power at 47 to 63 Hz If fusing is required use a 1 amp slow blow fuse for 110 VAC For 220 VAC use a 0 5 amp slow blow fus...

Страница 10: ...in the diagram below Refer to the SIXTRAK Installation and Maintenance user manual for ST Bus wiring guidelines Connections for the Mini VersaTRAK are shown on page 10 Screw Terminal Torque Tighten t...

Страница 11: ...roups of four from each other and from the VersaTRAK circuitry and expansion I O modules Sinking or Sourcing Wiring DC inputs are typically wired in a sourcing configuration as shown in the upcoming d...

Страница 12: ...d from the Mini VersaTRAK circuitry and expansion I O modules Sinking or Sourcing Wiring DC inputs are typically wired in a sourcing configuration as shown in the upcoming diagram Mini VersaTRAK DC in...

Страница 13: ...ower source may be separate from the DC power that runs the VersaTRAK or the same DC power source may be used If a separate DC power source is used connect the DC of that power source to the DC termin...

Страница 14: ...wer This power source may be separate from the DC power that runs the VersaTRAK or the same DC power source may be used If a separate DC power source is used connect the DC of that power source to the...

Страница 15: ...t in the SIXNET I O Tool Kit configuration Discrete Input Wiring Up to eight input signals may be connected to the VT PB8 in sourcing or sinking configurations Refer to the diagram below for sample wi...

Страница 16: ...he diagram below Analog Input Group Isolation The eight VersaTRAK analog input channels are isolated as a group from the VersaTRAK circuitry and expansion I O modules Analog Input Scaling These 4 20 m...

Страница 17: ...upply Connect all self powered 4 20 mA input field devices as shown in the diagram below Analog Input Scaling These 4 20 mA inputs are reported as unscaled values from 0 to 32767 Refer to the SIXNET I...

Страница 18: ...P VT A3 22E 24P 44P or 54P VT A3 42E 24P 44P or 54P VersaTRAK Analog Outputs The aforementioned VersaTRAK models have four 4 20 mA analog output signals These outputs are powered from a DC power sourc...

Страница 19: ...ort wiring is shown on page 20 Main Port All Models The Main port is an RS232 or RS422 RS485 port depending on the VersaTRAK or Mini VersaTRAK model The main port may be connected to any RS232 or RS42...

Страница 20: ...ation board in your computer For example you can use passthru mode to communicate to Ethernet or RS422 RS485 gateways from a single serial port on your computer In the SIXNET I O Tool Kit configuratio...

Страница 21: ...NET Universal protocols This port is intended to provide a connection for your laptop computer running SIXNET Windows software tools Sample cable connections to the Plant Floor port are shown below Pi...

Страница 22: ...of the handshaking lines and flow control making it possible to communicate through radio modems and other telemetry equipment The pinouts for these serial ports are shown below Cable wiring is identi...

Страница 23: ...K RTUs have one RS422 RS485 port This port provides full support of the handshaking lines and flow control making it possible to communicate through radio modems and other telemetry equipment The pino...

Страница 24: ...VersaTRAK RTU User Manual Page 24 of 31 Last Revised 05 23 02 SIXNET Box 767 Clifton Park NY 12065 USA 1 518 877 5173 FAX 1 518 877 8346 support sixnetio com...

Страница 25: ...opulated in the unit then add them to the RS485 wiring as shown below The components consist of a 150 Ohm resistor and a 0 1 uF capacitor connected in series Bias Resistors On an RS485 2 or 4 wire net...

Страница 26: ...e VT M2 224 xxP Mini VersaTRAK has one RS485 port User 1 This port provides two wire RS485 communication to SIXNET or Modbus devices with no flow control The pinouts for this port are shown below The...

Страница 27: ...t populated in the unit then add them to the RS485 wiring as shown below The components consist of a 150 Ohm resistor and a 0 1 uF capacitor connected in series Bias Resistors VT M2 224 xxP On an RS48...

Страница 28: ...T connectors are provided for cable connections Sample cable connections to the Plant Floor port are shown on page 16 Note Only one Ethernet port connector AUI or 10BaseT can be used at any one time F...

Страница 29: ...two conditions Either the module has lost communication with the RTU for more than 10 seconds or the module has not received configuration data from the RTU Upon initial system startup no configurati...

Страница 30: ...er span value raw value user offset The user span is a unity value 1 by default The user offset is zero by default Note All factory and user calibrations are performed in software There are no adjustm...

Страница 31: ...der number and date purchased available We suggest that you give us a repair purchase order number in case the repair is not covered under our warranty You will not be billed if the repair is covered...

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