Pulse-Width Modulation - Specifications; Communication - Specifications; System - Specifications - Campbell CR300 Series Operator's Manual

CR300-Series Datalogger
7.9 Pulse-Width Modulation – Specifications
7.10 Communication – Specifications
7.11 System – Specifications
48
Terminals:
Period
Maximum:
Resolution
0 – 5 ms:
5 – 325 ms:
> 325 ms:
Internet Protocols:
Additional
Protocols Supported:
Data File Formats:
USB:
RS-232:
Serial:
SDI-12:
Operating Temperature:
Processor:
Memory
CPU Drive / Programs: 5 MB flash
Data:
Operating System (OS): 2 MB flash
Clock Accuracy:
Clock Resolution:
Program Execution Interval: 100 ms to 1 day
SE terminals 1-4
2047 ms
83.33 ns or 12 MHz
5.00 µs or 200 kHz
31.25 µs or 32 kHz
PPP, ICMP/Ping, Auto-IP (APIPA), IPv4,
IPv6, UDP, TCP, TLS, DHCP Client, SLAAC,
DNS Client, Telnet
PakBus, SDI-12, Modbus RTU, Modbus
ASCII, Modbus TCP/IP, DNP3, custom user-
definable over serial.
CSV, XML, JSON, binary, encrypted
USB micro-B device only, 2.0 full-speed 12
Mbps, for computer connection.
Female RS-232, 9-pin interface
1200 to 115.2 kbps
One TX/RX pair (terminals C1/C2)
0 to 5 V output, 3.3 V input
1200 to 115.2 kbps
Two independent SDI-12 V1.3 compliant
terminals (C1, C2) configurable as sensor or
recorder
–40 to 70 °C
ARM Cortex M4 running at 144 MHz
10 MB flash
±1 minute per month
1 ms