Teledyne 2103c installation and operation guide Modbus Ascii Address 2-N+1 Register Definitions

2103 Modem Module

Section 4 Modbus Protocol

The register definitions for the individual modules (Modbus

ASCII addresses 2-(N+1)) are in Table 4-1below:

Table 4-2 Modbus ASCII Address 2-(N+1) Register Definitions

Register Number(s)	Name	Data Type	Units	Read/Write
1-4	Model number	8-byte string	None	Read
5-23	Module name	38-byte string	None	Read
241	Identify module	16 bit integer	None	Read/Write
252	Take reading flag	16 bit integer	None	Read/Write
263	Update interval	16 bit integer	Seconds	Read/Write
274	Active flag 1	16 bit field	None	Read
28	Active flag 2	16 bit field	None	Read
29	Active flag 3	16 bit field	None	Read
30	Active flag 4	16 bit field	None	Read
40,41	Level	4-byte float	Meters	Read
42	Level status code5	16-bit integer		Read
43-52	Level time record	Time6		Read
55,56	Velocity	4-byte float	Meters/second	Read
57	Velocity status code	16-bit integer		Read
58-63	Velocity time record	Time		Read
70,71	Flow	4-byte float	Cubic Meters/sec	Read
72	Flow status code	16-bit integer		Read
73-78	Flow time record	Time		Read
85,86	Flow 1	4-byte float	Cubic Meters/sec	Read
87	Flow 1 status code	16-bit integer		Read
88-93	Flow 1 time record	Time		Read
100,101	Volume	4-byte float	Cubic Meters	Read
102	Volume status code	16-bit integer		Read
103-108	Volume time record	Time		Read
115,116	Volume 1	4-byte float	Cubic Meters	Read

4-7