PULSAR MEASUREMENT 
 
179 
 
P131 Protocol 
This parameter is used to determine what Modbus protocol is being used. 
Protocol used is Modbus RTU 
Protocol used is Modbus ASCI 
P132 Device Address 
This is the Modbus slave address of the Ultra 4.  Default = 126 
P133 Device Baud Rate 
Sets the speed of the RS485 digital communications interface to match that 
of the device it is communicating with.  Default = 19200 
P134 Parity 
Determines the parity of the Ultra 4 to match that of the device it is 
communicating with, choices are between None, Odd or Even. 
P135 Stop Bit 
Shows the value of the bits that signal the end of an asynchronous 
transmission. 
P136 External Format 
This parameter determines what type of data format is used 
0 = Unsigned Integer 
(Default) 
16 bit which contains values from 0 – 65335 
16 bit which contains values from -32768 to 
+32768. 
This is an order in which the most significant 
value in the sequence is stored first. 
This is an order in which the least significant 
value in the sequence is stored. 
P137 Tx Delay 
This parameter is used to set a delay, if required, between the Ultra 4 
switching from transit (Tx) mode to receive mode (Rx).