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3.3 Run
3.3.1 Data Exchange
The data conversion between PROFINET network and serial of GT200-PN-RS is established by "mapping".
GT200-PN-RS has two data buffers, one is input buffer (1K bytes) with address range 0x0000-0x03FF; the other is
output buffer (1K bytes) with address range 0x4000-0x43FF.
3.3.1.1 PROFINET Slave
Presuming the input data length users have configured is N1, output data length is N2. GT200-PN-RS will
periodically send the data within the address range of [0x0000, N1] to PROFINET network; When receiving data
from PROFINET network, GT200-PN-RS will write the data to the address range of [0x4000, N2].
3.3.1.2 Modbus Master
When one serial runs Modbus master protocol, for all write registers, write coils command GT200-PN-RS
supports, GT200-PN-RS can get data from address range 0x0000-0x03FF, 0x4000-0x43FF and send them to the
Modbus slave. For all read registers, read coils command, GT200-PN-RS can write the data returned from Modbus
slave to address range 0x0000-0x03FF.
Notes: Each Modbus master can configure 48 commands, and every command can get one continuous Modbus
register.
3.3.1.3 Modbus Slave
When one serial runs Modbus slave protocol, for No. 03 commands master sent, GT200-PN-RS will get data
from address range 0x0000-0x03FF. For No. 04 commands, it will get data from 0x4000-0x43FF and return them to
the Modbus master. For No. 06, 16 command, it will write the Modbus master data to the address range of
0x0000-0x03FF.
3.3.1.4 Self-defined Protocol
When one serial runs self-defined protocol, users' serial device can read/write data to any address of two buffers
of 0x0000-0x03FF and 0x4000-0x43FF.
3.3.1.5 User Config-Poll
When one serial runs universal mode-ask and answer, request part of command can get data from any address of
Summary of Contents for GT200-PN-RS
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