Sitrans RD500 Remote Data Manager

  • Supports a large number of devices Can support up to 128 devices with flexible I/O modules and up to 247 Modbus serial devices
  • Easy-to-use Uses a web-based interface, so only a standard browser is needed
  • Supports expandable memory Compact flash slot can support up to 2 Gigabytes of expandable memory
Product Options


The SITRANS RD500 is an easy to use remote data manager that uses a web-based data application and hardware modules to provide integrated web access, alarm event handling, and data capture with worldwide access to instrument data log. It supports report and alarm notifications via email, SMS and FTP.

The RD500 can support up to 128 devices with flexible I/O modules and up to 247 Modbus serial devices with serial ports with an accuracy of ±0.1% of span for 8 channel, 4-20 mA.

The RD500 is made of high impact plastic and stainless steel and is Configured in a web-based interface so a standard browser is the only software needed for the system.

Manufactured by: Siemens-Milltronics
Model: Sitrans RD500 Remote Data Manager

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Inventory management
Remote monitoring
Web enabled instrumentation


Mode of operation
Measuring principle Remote data manager
Measuring points

• up to 128 standard input/outputs

• 247 Modbus serial devices

Input See table on data sheet
Output See table on data sheet
Accuracy See table on data sheet
Rated operating conditions
Storage temperature range -30 to +70 ºC (-22 to +158 ºF)
Operating temperature 0 to +50 ºC (+32 to +122 ºF)
Operating and storage humidity 80% max relative humidity, noncondensing, from 0 to +50 °C (+32 to +122 ºF)
Material (enclosure) High impact plastic and stainless steel
Installation category I
Pollution degree 2
Weight 456.4 g (15.1 oz)
Mounting Snaps onto standard DIN style top hat (T) profile mounting rails according to EN50022 -35 x 7.5 and -35 x 15

24 V DC

± 10% 400 mA min. (1 module)

3.5 Amps max. (16 modules)

Must use Class 2 or SELV-rated power supply

Status LEDs

• STS - Status LED indicates condition of master

• TX/RX - Transmit/Receive LEDs show serial activity

• Ethernet - Link and activity LEDs

• CF - CompactFlash LED indicates card status and read/write activity

On-board user memory 4 Mbytes of non-volatile Flash memory
On-board SDRAM 2 Mbytes
Memory card Compact Flash Type II slot for Type I and Type II cards; 2 Gbytes
Certificates and approvals

• UL Listed to U.S. and Canadian safety standards UL508 and CSA C22.2 No. 14-M05 (File No. E302106)

• IEC 61010-1, EN 61010-1: Safety requirements for electrical equipment for measurement, control, and laboratory use, Part 1.

• USB/PG port Adheres to USB specifications 1.1. Device only using Type B connection.
• Serial ports Format and baud rates for each port are individually software programmable up to 115, 200 baud
• RS232/PG port RS232 port via RJ12
• Comms ports RS422/485 port via RJ45 and RS232 port via RJ12
• Ethernet port 10 BASE-T/100 BASE-TX; RJ45 jack is wired as a NIC (Network Interface Card)