Campbell Scientific CR10X CR10X Measurement and Control System - Page 152
Input/output Instructions, Sdi-12 Recorder, Caution, Table 9-8., Sdi-12 Command Codes
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SECTION 9. INPUT/OUTPUT INSTRUCTIONS possible to control a maximum of 256 ports from the first three datalogger control ports. For each Rep, the 16 ports of the addressed SDM-CD16AC are sent according to 16 sequential input locations starting at the input location specified in parameter 3. Any non-zero value stored in an input location activates (connects to ground) the associated SDMCD16AC port. A value of zero (0) deactivates the port (open circuit). For example, assuming 2 Reps and a starting input location of 33, OUTPUT 1 through 16 of the first SDM-CD16AC are set according to input locations 33 through 48, and OUTPUT 1 through 16 of the second SDM-CD16AC are set according to input locations 49 through 64. See the SDM-CD16AC manual for detailed instructions and examples. PARAM. DATA NUMBER TYPE 01: 2 02: 2 03: 4 DESCRIPTION Reps (# of CD16AC modules sequentially addressed) Starting SDM Address (base 4: 00..33) Starting input location Input locations read: 16 per repetition *** 105 SDI-12 RECORDER *** NOTE: Version 1.2 of the SDI-12 specification has been implemented in the CR10X. Features added in this version are marked with a dagger (†) and may not be supported by older SDI-12 sensors. Instruction 105 allows data to be collected from SDI-12 sensors. The sensor's SDI-12 data line is connected to a control port (C1-C8). The SDI-12 ground should be connected to a "G" terminal on the CR10X wiring panel. SDI-12 power may be connected to 12V. If multiple SDI-12 sensors are used, up to ten sensors may be connected to a single control port, but each sensor must have a unique address and requires a separate Instruction 105. CAUTION: Instruction 97 with the voice option and the SDI-12 instructions may not be in same table. Instruction 97 must be in Table 1 and the SDI-12 instructions must be in Table 2. PARAM. DATA NUMBER TYPE DESCRIPTION 01: 4 Address (0-9, †10- 126) 02: 2 Command (Table 9-8) 03: 2 Control Port (C1-C8) 04: 4 Input location number 05: FP Mult 06: FP Offset Input locations altered: 1-9 (†1-99), depending on the SDI-12 sensor Intermediate locations required: 21 PARAMETER 1. ADDRESS Enter the address of the SDI-12 sensor (0-9). †Extended addresses (10-126) may be used by entering the decimal equivalent for the appropriate ASCII character (see Appendix E). For example, address 'A' would be entered as 65. PARAMETER 2. COMMAND Enter a number to select the command to be sent to the SDI-12 sensor. Usually 0 is entered to select the M command. The following Standard SDI-12 commands are supported by the CR10X: TABLE 9-8. SDI-12 Command Codes ENTRY COMMAND 0 M 0 -- C 1..9 M1..M9 10 V 11 I DESCRIPTION Initiate Measurement †Initiate Concurrent Measurement Additional Measurement commands specified by the SDI-12 sensor Initiate Verify sequence Send Identification 9-20