Campbell Scientific CR10X CR10X Measurement and Control System - Page 68
Storage Module
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SECTION 4. EXTERNAL STORAGE PERIPHERALS FIGURE 4.3-1. Example of CR10X Printable ASCII Output Format 4.3.2 COMMA SEPARATED ASCII Comma Separated ASCII strips all IDs, leading zeros, unnecessary decimal points and trailing zeros, and plus signs. Data points are separated by commas. Arrays are separated by Carriage Return Line Feed. Comma Separated ASCII requires approximately 6 bytes per data point. Example: 1,234,1145,23.65,-12.26,625.9 1,234,1200,24.1,-10.98,650.3 4.4 STORAGE MODULE The CR10X supports the SM4M/16M, SM192/716, and CSM1 Storage Modules. The Storage Module stores data in battery backed RAM. Operating power is supplied by the CR10X over pin 1 of the 9-pin connector. Whenever power is applied to the 9-pin connector (after having been off), the Storage Module places a File Mark in the data (if a File Mark is not the last data point already in storage). The File Mark separates data. For example, if you retrieve data from one CR10X, disconnect the Storage Module and connect it to a second CR10X, a File Mark is automatically placed in the data. This mark follows the data from the first CR10X but precedes the data from the second. 4.4.1 STORAGE MODULE ADDRESSING The CSM1 does not support individual addresses. Use address 1 when sending data to the CSM1. The SM4M/16M and SM192/716 Storage Modules can have individual addresses. Different addresses allow 1) multiple Storage Modules to be connected to the CR10X during on-line output, 2) different data to be output to different Modules, and 3) transfer of data from a Module that is left with the CR10X to a Module that is hand carried to the site for data transfer (∗9 Mode). Storage Modules are assigned addresses (1-8) either through the ∗9 Mode or with the SMCOM or SMS software. 1 is the default address when the Storage Module is reset. Unless you are using one of the features which require different addresses, you need not assign any other address. Address 1 is also a universal address when sending data or commands to a storage module with Instruction 96, ∗8, or ∗9. When address 1 is entered in the ∗9 Mode (default) or in the device code (71, Table 4.2-1) for Instruction 96 or the ∗8 Mode, The CR10X searches for the Storage Module with the lowest address that is not full (fill and stop configuration only) and addresses it. In other words, if a single Storage Module is connected, and it is not full, address 1 4-4