Thytronic NA60-MB0 PRON Series - 1.6 Modbus;TCP; 1.7 Network setting; 1.8 NTP synchronization

PRON NA60-MB0
Version 3.50
PRON NA60-MB0 Remote Setting Manual Page: 5 of 59
The next table describes all the exceptions handled by the TPRs.
Code
Name Description
01 ILLEGAL FUNCTION
The function code received in the query is not an allowable action for
the slave.
02 ILLEGAL DATA ADDRESS
The data address received in the query is not an allowable address for
the slave
03 ILLEGAL DATA VALUE
A value contained in the query data field is not an allowable value for
the slave
04 SLAVE DEVICE FAILURE
An unrecoverable error occurred while the slave was attempting to
perform the requested action.
05 ACKNOWLEDGE
The slave has accepted the request and is processing it, but a long
duration of time will be required to do so. This response is returned to
prevent a timeout error from occurring in the master.
06 SLAVE DEVICE BUSY
The slave is engaged in processing a long-duration program command.
The master should retransmit the message later when the slave is free.
1.6 Modbus/TCP
Modbus/TCP, an extension of Modbus/RTU, defines how Modbus/RTU and Modbus/ASCII messages are encoded
within and transported over TCP/IP-based networks. Modbus/TCP is just as simple to implement and flexible to
apply as the original Modbus/RTU. The specification can be found online at www.modicon.com
1.7 Network setting
Every device connected to the TCP/IP network including the TPRs must have a unique IP address. Every TPR has
the following default IP address:
Default IP Address = 200.1.1.135
1.8 NTP synchronization
To synchronize the Real Time Clock of more than one protection at the same time the NTP service is available.
Network Time Protocol (NTP) is a protocol for synchronizing the clocks of computer systems over packet-switched,
variable-latency data networks. NTP uses UDP port 123 as its transport layer. It is designed particularly to resist
the effects of variable latency.
To synchronize all the TPR in a network is sufficient to send a broadcast NTP packet on the network.


 The NTP service can be enabled/disabled changing the “NTP synchronization” parameter (Appendix A –
Address Data Table).
More information about the NTP protocol and service can be found online at www.ntp.org
Transaction
Identifier
Protocol
Identifier
Length Field Modbus Frame
TCP FRAME
CHECKSUM
S F DATA
MODBUS FRAME