Summary

See below for our information on our data resolution to the Cloud.

3rd Party Protocol

Many 3rd Party Devices allow Industrial Gateways to locally collect a large number of data points every second, however the Industrial Gateway itself is limited to uploading a maximum of 100 new datapoints every second to the Samsara Cloud. More than 100 separate data points can be collected, but the polling rate per data point will be reduced after 100. The maximum polling rate for 200 data points would be once every 2 seconds. Once per 3 seconds for 300, and so on.

Protocol

# of registers posting to cloud at 1 sec resolution

Type of third party device

Modbus TCP

50

Click PLC

Modbus RS232 (9600 baud)

50

Click PLC

Modbus RS232 (19200 baud)

50

Click PLC

Modbus RS232 (115200 baud)

50

Click PLC

Modbus RS485 (9600 baud)

50

Click PLC

Modbus RS485 (19200 baud)

50

Click PLC

Modbus RS485 (115200 baud)

50

Click PLC

Ethernet/IP

50

Micrologix 1100

ROC TCP

100

ROC 809

ROC RS232 (9600 baud)

75

ROC 809

ROC RS232 (19200 baud)

100

ROC 809

ROC RS232 (115200 baud)

100

ROC 809

ROC RS485 (9600 baud)

75

ROC 809

ROC RS485 (19200 baud)

100

ROC 809

ROC RS485 (115200 baud)

100

ROC 809

Interactive Serial 

Not tested yet

 

CAN Bus 

Supported SPNs and DTCs: https://samsara-industrial.atlassian.net/wiki/spaces/SIPD/pages/22119242/Set+up+CAN+Bus+in+the+Cloud#List-of-Supported-SPNs-and-DTCs

SPN Name

Logging to Cloud (s)

SPN

PGN

Transmission Rate

Actual Engine - Percent Torque

300

513

61444

Engine speed dependent

Fixed rate of 10 to 50ms or Engine Speed Dependent.

Engine Intake 1 Air Temperature

300

172

65269

1 s

Ambient Air Temperature

120

171

65269

1 s

Barometric Pressure

120

108

65269

1 s

Battery Potential / Power Input 1

120

168

65271

1 s

Engine Intake Manifold #1 Pressure

300

102

65270

0.5 s

Engine Coolant Temperature

120

110

65262

1 s

Engine Intercooler Temperature

300

52

65262

1 s

Engine Oil Pressure

120

100

65263

0.5 s

Engine Oil Temperature 1

300

175

65262

1 s

Engine Speed

120

190

61444

Engine speed dependent

Fixed rate of 10 to 50ms or Engine Speed Dependent.

Engine Fuel Delivery Pressure

300

94

65263

0.5 s

Engine Fuel Rate

300

183

65266

100 ms

Engine Percent Load At Current Speed

120

92

61443

50 ms (preferred) or Engine Speed Dependent (if required by application)

Accelerator Pedal Position 1

300

91

61443

50 ms (preferred) or Engine Speed Dependent (if required by application)

Engine Total Hours of Operation

Not timing based. Report every time runtime increases by 3 minutes. (granularity of data from SPN)

247

65253

On request

Generator Total kW Hours Export

300

2468

65018

100 ms

Generator Total kW Hours Import

300

2469

65018

100 ms

Generator Total Reactive Power

300

2456

65028

100 ms

Generator Overall Power Factor

300

2464

65028

100 ms

Generator Overall Power Factor Lagging

300

2518

65028

100 ms

Generator Total Real Power

300

2452

65029

100 ms

Generator Total Apparent Power

300

2460

65029

100 ms

Generator Average Line-Line AC RMS Voltage

300

2440

65030

100 ms

Generator Average Line-Neutral AC RMS Voltage

300

2444

65030

100 ms

Generator Average AC Frequency

300

2436

65030

100 ms

Generator Average AC RMS Current

300

2448

65030

100 ms

Engine Air Filter 1 Differential Pressure

300

107

65270

0.5 s

Engine Exhaust Temperature

300

173

65270

0.5 s

Engine Oil Level

300

98

65263

0.5 s