Campbell Scientific CR510 CR510 Basic Datalogger - Page 61
External Storage Peripherals - review
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SECTION 4. EXTERNAL STORAGE PERIPHERALS External data storage devices are used to provide a data transfer medium that the user can carry from the test site to the lab and to supplement the internal storage capacity of the CR510, allowing longer periods between visits to the site. The standard data storage peripheral for the CR510 is the Storage Module (Section 4.4). Output to a printer or related device is also possible (Section 4.3). Data output to a peripheral device can take place ON-LINE (automatically, as part of the CR510's routine operation) or it can be MANUALLY INITIATED. On-line data transfer is accomplished with Instruction 96 (Section 4.1). Manual initiation is done in the ∗8 Mode (Section 4.2). The CR510 can output data to multiple peripherals. The CR510 activates the peripheral it sends data to in one of two ways (Section 6.2): 1. A specific pin in the 9-pin connector is dedicated to that peripheral; when that pin goes high, the peripheral is enabled. This is referred to as "PIN-ENABLED" or simply "ENABLED". 2. The peripheral is synchronously addressed by the CR510. This is referred to as "ADDRESSED". Modems are pin-enabled. Only one modem device may be connected to the CR510 at any one time. The CR510 considers the following devices to be pin-enabled modems: SC32A, SC932, short-haul, MD9, radio modems, and telephone modems except for voice modems. The SM192, SM716, and CSM1 Storage Modules are addressed. The CR510 can tell when the addressed device is present. The CR510 will not send data meant for the Storage module if the Storage Module is not present (Section 4.4.2). Other addressed devices include the CR10KD and voice modems. The ∗9 Mode (Section 4.5) allows the user to communicate directly with the Storage Module and to perform several functions, including review of data, battery test, review of Storage Module status, etc. Cassette tape data storage is not supported by the CR510. 4.1 ON-LINE DATA TRANSFER INSTRUCTION 96 All on-line data output to a peripheral device is accomplished with Instruction 96. (Instruction 96 can also be used to transfer data from one Final Storage Area to the other, Section 8.8, 12). This instruction must be included in the datalogger program for on-line data transfer to take place. Instruction 96 should follow the Output Processing Instructions, but only needs to be included once in the program table unless both Final Storage areas are in use. The suggested programming sequence is: 1. Set the Output Flag. 2. If both Final Storage Areas are in use or if you wish to set the Output Array ID, enter Instruction 80 (Section 11). 3. Enter the appropriate Output Processing Instructions. 4. Enter Instruction 96 to enable the on-line transfer of Final Storage data to the specified device. If outputting to more than one device, Instruction 96 must be entered separately for each device. 5. Repeat steps 2 through 4 if you wish to output data to the other Final Storage Area and the peripheral. 4-1