Wiring panel and terminal functions

The CR1000X/CR1000Xe 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

CR1000Xe wiring panel


CR1000X Wiring panel

Analog input terminal functions
SE
DIFF		 1   2
┌1┐
H   L		 3   4
┌2┐
H   L		 5   6
┌3┐
H   L		 7   8
┌4┐
H   L		 9  10
┌5┐
H   L		 11  12
┌6┐
H   L		 13  14
┌7┐
H   L		 15  16
┌8┐
H   L		 RG1 RG2
Single-Ended Voltage ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓    
Differential Voltage H L H L H L H L H L H L H L H L    
Ratiometric/Bridge ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓    
Thermocouple ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓    
Current Loop                                 ✓ ✓
Period Average
 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓    

 

Pulse counting terminal functions
  P1 P2 C1-C8
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
  VX1-VX4
Switched Voltage Excitation ✓

 

Voltage Output
  C1-C81 VX1-VX4 5V 12V SW12-1 SW12-2 SW12-CSIO
5 VDC ✓ ✓ ✓        
3.3 VDC ✓ ✓          
12 VDC       ✓ ✓ ✓

✓

(CR1000Xe only)

1C terminal voltage levels are configured in pairs. The default voltage output from C terminals is 5 V. Use the PortPairConfig instruction in CRBasic to configure a C terminal pair to output 3.3 V.

 

Communications terminal functions
  C1 C2 C3 C4 C5 C6 C7 C8 RS-232/CPI
SDI-12 ✓   ✓   ✓   ✓    
GPS PPS Rx Tx Rx Tx Rx Tx Rx  
TTL 0-5 V1 Tx Rx Tx Rx Tx Rx Tx Rx  
LVTTL 0-3.3 V1 Tx Rx Tx Rx Tx Rx Tx Rx  
RS-232* Tx Rx Tx Rx Tx Rx Tx Rx ✓
(CR1000Xe only)
RS-485 (Half Duplex) A- B+ A- B+ A- B+ A- B+  
(CR1000Xe only)
RS-4852 (Full Duplex) Tx- Tx+ Rx- Rx+ Tx- Tx+ Rx- Rx+  
(CR1000Xe only)
I2C SCL SDA SCL SDA SCL SDA SCL SDA  
SPI SCLK COPI CIPO   SCLK COPI CIPO    
SDM3 Data Clk Enabl   Data Clk Enabl    
CPI/CDM                 ✓

*ComC1 and ComC3 on the CR1000X are not designed to handle RS-232 signals, and long-term exposure—such as when connecting an RV50(X) modem—can damage the data logger.

1 TTL and LVTTL are configured with the CommsMode option of the SerialOpen instruction in CRBasic.

2 RS-422 compatible.

3 SDM can be on either C1-C3 or C5-C7, but not both at the same time.

Communications functions also include Ethernet and USB.

 

WARNING:

While ComC1–ComC3 are compatible with RS-232 signals on the CR1000Xe, only ComC5 and ComC7 are compatible with RS-232 signals on the CR1000X. ComC1 and ComC3 on the CR1000X are not designed to handle RS-232 signals, and long-term exposure—such as when connecting an RV50(X) modem—can damage the data logger. An advantage of the CR1000Xe is that ComC1, ComC3, ComC5, and ComC7 all support RS-232 signals, whereas the CR1000X supports RS-232 only on ComC5 and ComC7.

 

Digital I/O terminal functions
  C1-C8
General I/O ✓
Pulse-Width Modulation Output ✓
Timer Input ✓
Interrupt ✓
Quadrature ✓