Omron E5 R Selection Manual page 49

3. Press the Mode Key to move around the parameters in the way
shown below.
4. Change the parameter settings as required using the Up and
Down Keys.
Protocol selection
Communications
unit number
Baud rate
Data length
Stop bits
Parity
Response send
wait time
Set the communications parameters
to match those of the computer to
be communicated with.
Protocol Selection (psel)
Select either CompoWay/F or Modbus as the communications proto-
col. CompoWay/F is a general-purpose communications-based uni-
fied communications protocol developed by OMRON Modbus is a
communications protocol that conforms to the RTU Mode of the Mod-
icon Inc.'s Modbus Protocol (specifications: PI-MBUS-300 Rev. J).
Communications Unit Number (u-no)
When communicating with the host computer, the unit number must
be set in each Controller so that the host computer can identify each
one. The number can be set to any integral value in the range 0 to
99. The default setting is 1. When using more than one Controller, be
careful not to use the same number twice. Duplicate settings will
cause malfunction. The set value becomes valid when the power is
turned OFF and ON again.
Baud Rate (bps)
Use this parameter to set the speed of communications with the host
computer. It can be set to one of the following values; 9.6
(9,600 bps), 19.2 (19,200 bps), or 38.4 (38,400 bps). The setting
becomes valid when the power is turned OFF and ON again.
Data Length (len)
The length of communications data can be set to either 7 or 8 bits.
Stop Bits (sbit)
The number of communications stops bits can be set to either 1 or 2.
Parity (prty)
The communications parity can be set to none, even, or odd.
Response Send Wait Time (sdwt)
Changes to the response send wait time are enabled either after
software reset or when the power is turned OFF and ON again.
E5AR/E5ER
Digital Controllers
49