Specifications

CR1000 Table of Contents
vii
12. Memory and Data Storage ....................................12-1
12.1
Internal SRAM ................................................................................. 12-4
12.2 CompactFlash
®
(CF) ........................................................................ 12-4
12.3 Memory Drives................................................................................. 12-5
12.3.1 CPU: ....................................................................................... 12-5
12.3.2 CRD: (CF card memory) ........................................................ 12-5
12.3.3 USR: ....................................................................................... 12-5
12.4 Memory Conservation ...................................................................... 12-6
12.5 Memory Reset .................................................................................. 12-6
12.6 File Control ...................................................................................... 12-6
12.6.1 File Attributes......................................................................... 12-8
12.6.2 CF Power-up........................................................................... 12-9
13. Telecommunications and Data Retrieval ............13-1
13.1 Hardware and Carrier Signal............................................................ 13-1
13.2 Protocols........................................................................................... 13-2
13.3 Initiating Telecommunications......................................................... 13-2
13.4 Data Retrieval................................................................................... 13-3
13.4.1 Via Telecommunications............................................................... 13-3
13.4.2 Via CF Card................................................................................... 13-3
13.4.3 Data Format on Computer............................................................. 13-3
14. PakBus Overview ..................................................14-1
14.1 PakBus Addresses ............................................................................ 14-1
14.2 Nodes: Leaf Nodes and Routers ....................................................... 14-1
14.3 Router and Leaf Node Configuration ............................................... 14-2
14.4 Linking Nodes: Neighbor Discovery................................................ 14-3
14.4.1 Hello-message (two-way exchange)....................................... 14-3
14.4.2 Beacon (one-way broadcast)................................................... 14-3
14.4.3 Hello-request (one-way broadcast) ......................................... 14-3
14.4.4 Neighbor Lists ........................................................................ 14-3
14.4.5 Adjusting Links ...................................................................... 14-3
14.4.6 Maintaining Links................................................................... 14-4
14.5 Troubleshooting................................................................................ 14-4
14.5.1 Link Integrity.......................................................................... 14-4
14.5.2 Ping......................................................................................... 14-5
14.5.3 Traffic Flow............................................................................ 14-5
14.6 LoggerNet Device Map Configuration............................................. 14-6
15. Alternate Telecoms Resource Library.................15-1
15.1 DNP3................................................................................................ 15-1
15.2 Modbus............................................................................................. 15-2
15.2.1 Overview ................................................................................ 15-2
15.2.2 Terminology ........................................................................... 15-3
15.2.2.1 Glossary of Terms......................................................... 15-3
15.2.3 CR1000 Programming for Modbus......................................... 15-4
15.2.3.1 Declarations
................................................................... 15-4
15.2.3.2 Datalogge
r Commands .................................................. 15-4
15.2.3.3 Addressing (M
odbusAddr)............................................ 15-5
15.2.3.4 Supported Function Codes
(Function)........................... 15-5
15.2.3.5 Reading Inverse For
mat Registers (MoveBytes)........... 15-5