Micro-Aide CWR-24E, User Manual, Page: 11 / 108

C
hapter
1 – g
eneraL
D
eSCription
C
oMparing the
VDL S7‑300
anD
CWr‑24e
3
M
icro
‑A
ide
1
•
Analog Inputs are tested against separate High and Low Limit Values that are assigned by the user.
Crossing either Limit Value will create an Event Record.
•
Events are date and time stamped to the nearest tenth of a second.
•
Eight Virtual Inputs can be programmed to create Event Records that identify alarm or fault condi‑
tions of special interest to the user.
•
Sixteen Timer Inputs can be used to measure and report intervals between any pair of events.
•
Limit Values can be assigned to establish a range of acceptable and unacceptable timed intervals.
•
Timer Inputs create Event Records that list the timed interval and its relationship to the programmed
Limit Values.
•
Installation is quite simple. Input wires are terminated in detachable, tension clamp terminals. Wire
sizes as large as 12 AWG can be used.
•
Maximum power consumption is less than 4 W. A 9 to 36 Vdc power source can be used to power the
logger.
•
The internal temperature of the logger is measured and reported.
•
The user interface provides full cursor control when using a PC.
•
Three distinct levels of password security provide protection against unauthorized access.
•
Several diagnostic commands can be executed to verify important system operations.
•
Firmware updates can be uploaded to the logger via any port (i.e., Terminal, modem, USB Device or
Ethernet). Additionally, new firmware can be uploaded directly via a USB flash drive.
•
MICRO‑AIDE’s GEA (Graphical Event Analyzer) software is fully compatible with the VDL S7‑300. GEA
can be used to poll, save, review, plot and analyze Event Record data.
C
oMparing the
VDL S7‑300
anD
CWr‑24e
Most of the recording features of the CWR‑24E Event Recorder have been included as capabilities of
the VDL S7‑300. The hardware design of the VDL is a specific configuration of the CWR‑24E. Nevertheless,
there are several important distinctions. They have been highlighted in Table 1 on page 3 .
Feature VDL S7‑300 CWR‑24E
Digital Inputs 999, via PLC 20, hard wired
RS‑232 Ports Terminal and PLC Serial Port Terminal Port only
Event Record time stamps .1 sec. .001 sec.
Flashing Events not available available
Flash Rate Reporting not available available
Train Speed Monitors not available 4 available
Std. Event Record capacity 284,785 307,123
Table 1: VDL S7‑300 and CWR‑24E Differences
f
irMWare
M
oDifiCation
h
iStory
Features have either been introduced or modified as the result of the following firmware modifications.
V1.00 Initial release.
V1.01 A phone line disconnect is performed automatically if the Data Logger does not transmit any data for
five minutes.
V1.02
Corrected time information associated with Event Records written to USB Host port.