RUGGEDCOM ROS
User Guide
Chapter 1
Introduction
ModBus Memory Formats 19
Address #Registers Description (Reference Table in UI) R/W Format
0644 2 Port 3 Statistics – Serial Out characters R Uint32
0646 2 Port 4 Statistics – Serial Out characters R Uint32
0680 2 Port 1 Statistics – Serial In Packets R Uint32
0682 2 Port 2 Statistics – Serial In Packets R Uint32
0684 2 Port 3 Statistics – Serial In Packets R Uint32
0686 2 Port 4 Statistics – Serial In Packets R Uint32
06C0 2 Port 1 Statistics – Serial Out Packets R Uint32
06C2 2 Port 2 Statistics – Serial Out Packets R Uint32
06C4 2 Port 3 Statistics – Serial Out Packets R Uint32
06C6 2 Port 4 Statistics – Serial Out Packets R Uint32
Section 1.7.3
ModBus Memory Formats
The following ModBus memory formats are supported by Siemens:
• Section 1.7.3.1, “Text”
• Section 1.7.3.2, “Cmd”
• Section 1.7.3.3, “Uint16”
• Section 1.7.3.4, “Uint32”
• Section 1.7.3.5, “PortCmd”
• Section 1.7.3.6, “Alarm”
• Section 1.7.3.7, “PSStatusCmd”
• Section 1.7.3.8, “TruthValues”
Section 1.7.3.1
Text
The Text format provides a simple ASCII representation of the information related to the product. The most
significant register byte of an ASCII characters comes first.
For example, consider a Read Multiple Registers request to read Product Identification from location 0x0000.
0x04 0x00 0x00 0x00 0x08
The response may look like:
0x04 0x10 0x53 0x59 0x53 0x54 0x45 0x4D 0x20 0x4E 0x41 0x4D 0x45
0x00 0x00 0x00 0x00 0x00
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