User`s manual

MGate 4101-MB-PBS UM Configuration
4-13
Max. Retry Master mode only, the number of times the master will re
try the same request when
response time out.
Response Time-out
According to the Modbus standard, the time that it takes for a slave device to respond to a request is defined
by the device manufacturer (please refer to Appendix A of MGate MB3000 series User Manual for details).
Based on this response time, a master can be configured to wait a certain amount of time for a slave’s response.
If no response is received within the specified time, the master will disregard the request and continue
operation. This allows the Modbus system to continue operation even if a slave device is disconnected or faulty.
On the MGate 4101-MB-PBS, the “Response Time-out” field is used to configure how long the gateway will wait
for a response from a Modbus ASCII or RTU slave. Please refer to your device manufacturer’s documentation
to manually set the response time-out.
Set up PROFIBUS
Every PROFIBUS slave device should be assigned a unique address in the same field. If the address you would
assign is lower than 99, please use the rotary switches (decimal) on the top of device. If the address you would
assign is higher than 99, please set the rotary switches as 99 and Slave Address field will be enabled for
setting the designated address.
PROFIBUS Description
Slave Address Before communication, you must assign a slave ID to the PROFIBUS slave, If you
would like to assign an address between 0-99, you need to change the rotary s
witch
to the desired address. If you would like to assign an address which is over 99, you
must set it in the MGate utility.
If you would like to use a slave address which is over 99, set the rotary switch to “99”
and then use MGate Manager to configure the desired address.
Refer to chapter 3 for instructions on how to set the slave address using a rotary switch.