Watlow RMA PLUS RMAP-2A Series, User Manual

Page: 50 / 75

Version 1.0 PN: 2042-8198
Page 50 of 75 DN: 10-32813
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The format column may be used to override the default numeric data format for the given record.
Standard printf style format strings may be used i.e. %f, %i, %X, etc. Leave this field empty to use
the default data format.
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The format of the log file name is “YYYY -MM-DD.csv. ”
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A new file is created every day. Mount the MICRO SD drive to access / manage log files.
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Files with a creation date older than LogKeepDays will be deleted. Folders, read-only files, and
hidden files are excluded.
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File maintenance is triggered when a new file is created (file size is zero).
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All Data Types are supported.
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Unsupported data types will be blank. This may be observed in a log file if the RMA PLUS is not able
to read the representation (data type) of a member. This will be the case if the target device is not
present or the bus has yet to acquire the member attributes.
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If the file nor:\Text.csv exists, enumerations will be logged as strings. If not, they will be logged as
their integer equivalent.
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Producer / consumer data points will display 99999 if an error exists.
Header
Format
Bus Segment Zone Class Instance Member Refresh Count
DEV 1 Hardware ID 1 0 0 1 1 1 0
TST 1 Tick 1 0 0 16 1 6 0
RTC 1 Timestamp 1 0 0 36 1 19 0
Figure 46 - DataLog.csv default configuration
The following is a sample from the file “sd: \DataLog\2018-01-25.csv ” generated from the configuration
file above:
Time DEV 1 Hardware ID TST 1 Tick RTC 1 Timestamp
0:00:00 118 224660111 570175200
0:00:05 118 224665131 570175205
0:00:10 118 224670111 570175210
0:00:15 118 224675081 570175215
0:00:20 118 224680101 570175220
0:00:25 118 224685121 570175225
0:00:30 118 224690096 570175230
0:00:35 118 224695116 570175235
0:00:40 118 224700081 570175240
0:00:45 118 224705106 570175245
Modbus® RTU
This feature is only available if the model number is RMAP- 2 AXX-XXXX.
Setup keys: ModbusRtu6 , ModbusRtu7 , UART7 , RtuFc6
If available, the RMA PLUS enables two Modbus® RTU channels on an adjacent RS-232 / RS-485
companion module. These channels may be independently configured as masters or slaves. Modbus®
RTU does not proxy requests. It interacts asynchronously with a user-defined data model loaded on
initialization and configured by way of a USBD gateway file.
As a Modbus® RTU slave, the RMA PLUS only implements the following Modbus® function codes:
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3: Read Holding Registers
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4: Read Input Registers