5 sensus communications, Sensus data logger, General information – Casella CEL Nomad portable weather station User Manual

Page 53: 1 rs 232 command

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Channel

1

2

3

4

5

6

7

Input
Channel

1

2

3

4

5

6

7

Display
Format

###.#

##.#

####.#

###

+##.#

###.#

####.#

Polyno-
mial

0, 0.2

0, 0.07246 350, 500

(sensor
specific)

0, 199

-40, 100

0, 100

-27,
11990.4
(sensor
specific)

Enabled

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Logged

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Minimum
Limit

0.0

0.0

800.0

0.0

-40.0

0.0

0.0

Maximum
Limit

100.0

100.0

1100.0

360.0

+60

100.0

2000.0

General Information

Station ID:

Nomad XXXXXX, (XXXXX is replaced with a
serial number when profile transferred)

Station number:

1

Sensor scan rate:

Default: 5 seconds
Fast: 2 seconds

Logging rate:

Default: 5 minutes
Fast: 30 seconds

Logging enabled:

Yes

Alarms defined:

None

Alarms enabled:

No

Serial communications

All ports 9800, 8, 1, N, no flow control

Modem definition:

Default settings

Modem enabled:

No

Auto transmit mode enabled:

No

Idle time:

60 seconds

Transmit period:

20 seconds

Radio enable:

Active low (for interface to low power radio).

7.5

Sensus Communications

The Sensus Logger is fitted with several communications interfaces, two RS 232
and one RS 485. These interfaces allow both control of the logger via different
media and data to be logged from other instruments with similar interfaces.

7.5.1

RS 232 Command

The primary command interface to the Sensus Logger is located on the right
hand end of the logger case, marked “RS 232 Command". This 9-way D-type
connector has the same pin-out as a similar 9-way connector found on most
modern PCs. The pin connections for the RS 232 Command 9-way D-type
connector are as follows.

Pin

Assignment

2

Receive data (out)

3

Transmit data (out)

4

DTR (out) (linked internally to 7)

5

Ground

7

RTS (out) (linked internally to 4)

8

CTS (in)

Sensus Data Logger

Page 53 of 68

NOMAD Portable Weather Station
Users Handbook

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