Wiring panel and terminal functions

The GRANITE 6 wiring panel provides ports and removable Closedterminals Point at which a wire (or wires) connects to a wiring panel or connector. Wires are usually secured in terminals by screw- or lever-and-spring actuated gates with small screw- or spring-loaded clamps. for connecting sensors, power, and communications devices. It is protected against surge, over-voltage, over-current, and reverse power. The wiring panel is the interface to most data logger functions so studying it is a good way to get acquainted with the data logger. Functions of the terminals are broken down into the following categories: ‪

  • Analog input
  • Pulse counting
  • Analog output
  • Communications
  • Digital I/O
  • Power input
  • Power output
  • Power ground
  • Signal ground

 

GRANITE 6 Wiring panel

          

GRANITE 6

Analog input terminal functions
  U1 U2 U3 U4 U5 U6 U7 U8 U9 U10 U11 U12 RG
Single-Ended Voltage ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓  
Differential Voltage H L H L H L H L H L H L  
Ratiometric/Bridge ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓  
Vibrating Wire (Static, VSPECT®) ✓ ✓ ✓ ✓ ✓ ✓  
Vibrating Wire with Thermistor ✓ ✓ ✓  
Thermistor ✓ ✓ ✓ ✓ ✓ ✓  
Thermocouple ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓  
Current Loop                         ✓
Period Average
 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓  

 

Pulse counting terminal functions
  U1 U2 U3 U4 U5 U6 U7 U8 U9 U10 U11 U12 C1-C4
Switch-Closure ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
High Frequency ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
Low-level AC   ✓   ✓   ✓   ✓   ✓   ✓  
NOTE:

Conflicts can occur when a control port pair is used for different instructions (TimerInput(), PulseCount(), SDI12Recorder(), WaitDigTrig()). For example, if C1 is used for SDI12Recorder(), C2 cannot be used for TimerInput(), PulseCount(), or WaitDigTrig().

 

Analog output terminal functions
  U1-U12
Switched Voltage Excitation ✓
Switched Current Excitation ✓

 

Voltage output terminal functions
  U1-U121 C1-C41 12V SW12-1 SW12-2 5V
3.3 VDC ✓ ✓        
5 VDC ✓ ✓       ✓
12 VDC     ✓ ✓ ✓  

1C and U terminal voltage levels are configured in pairs. By default, digital ports are output 5V. They can be set to 3.3V using the PortPairConfig instruction in CRBasic.

 

Communications terminal functions
  U1 U2 U3 U4 U5 U6 U7 U8 U9 U10 U11 U12 C1 C2 C3 C4 RS-232/
CPI
SDI-12 ✓   ✓   ✓   ✓   ✓   ✓   ✓   ✓    
GPS Time Sync PPS Rx                     Tx Rx Tx Rx  

TTL1

0-5 V

 Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx  

LVTTL1

0-3.3 V

 Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx  
RS-232                         Tx Rx Tx Rx ✓
RS-485
(Half Duplex)		                         A- B+ A- B+  
RS-485
(Full Duplex)		                         Tx- Tx+ Rx- Rx+  
I2C SCL SDA SCL SDA SCL SDA SCL SDA SCL SDA SCL SDA SCL SDA SCL SDA  
SPI SCLK COPI CIPO   SCLK COPI CIPO   SCLKI COPI CIPO   SCLK COPI CIPO    
SDM Data Clk Enabl   Data Clk Enabl   Data Clk Enabl   Data Clk Enabl    
CPI/
CDM		                                 ✓
1TTL and LVTTL are configured with the CommsMode option of the SerialOpen instruction in CRBasic.

 

Digital I/O terminal functions
  U1-U12 C1-C4
General I/O ✓ ✓
Pulse-Width Modulation Output ✓ ✓
Timer Input ✓ ✓
Interrupt ✓ ✓
Quadrature ✓ ✓