Appendix D. ModBus Management Support and Memory
Map
ROS® v3.11User Guide
129
RMC30
Address
#Registers
Description (Reference Table in UI)
R/W
Format
0602
2
Port 2 Statistics – Serial In characters
R
Uint32
0604
2
Port 3 Statistics – Serial In characters
R
Uint32
0606
2
Port 4 Statistics – Serial In characters
R
Uint32
0640
2
Port 1 Statistics – Serial Out characters R
Uint32
0642
2
Port 2 Statistics – Serial Out characters R
Uint32
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
D.1.1. Text
This format provides a simple ASCII representation of the information related to the product.
ASCII characters’ most significant byte of register 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
In this example, starting from byte 3 until the end, the response presents an ASCII
representation of the characters for the product identification, which reads as “SYSTEM
NAME”. The length of this field is smaller than eight registers, so the rest of the field is filled
with zeros.
D.1.2. Cmd
This format instructs the device to set the output to either ‘true’ or ‘false’. The most significant
byte comes first.
• FF 00 hex requests output to be True.
• 00 00 hex requests output to be False.
• Any value other than the suggested values does not affect the requested operation.