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S o f t w a r e C o n f i g u r a t i o n s
Master/Slave
(Stand Alone/Master/Slave/Number of Slaves/Master Timeout)
The master/slave mode is a daisy chain configuration of scanners consisting of one master unit and up to seven slave units. The
master unit collects and evaluates all the data transmitted by the slave devices in order to sort out redundant data before passing
it on to the host device. The master must be closest to the host device and is always automatically assigned 0 as a device ID
number. The slave units are automatically assigned consecutive ID numbers based on their physical proximity to the master
device.
If “stand alone” is selected, the scanner is programmed to work as an individual unit. If “slave” is selected, the device will function
as one of the slave units. With the selection of “master”, the device will be programmed to function as the master device and the
user must enter the number of slave devices (count of slaves, 1-7) to be used. The time out determines the maximum transmis-
sion time (MTT) for all scanners (slaves) to respond to the master. Valid time out range is 0 to 99.99 seconds.
The MTT can be calculated as follows:
MTT = NS x (11000/Baud x (12 + 20 x MAC + NCC) [ms] + RZ-CLV [ms]
NS = Number of slave units
MAC = Maximum amount of codes (for slave units)
NCC = Number of code characters = Total number of code characters transmitted by a slave
Sum of all codes
RZ-CLV = Reaction time of CLV: 5 ms (roughly estimated value)
Note: The reading gate of the slave units must close before the reading gate of the master unit closes, or data sent after the
reading gate of the master unit closes will be lost.
HOST COMMUNICATIONS
(Baud Rate/Data and Parity Bits/Stop Bits)
The CLV 410 bar code scanner has both RS 232 and RS 422/485 community interfaces available.
Baud Rate
(300 - 57,600)
Baud rate can vary from 300 to 57,600. When networking via RS 485 interface, a Baud rate of 19,200 Bd is automatically set by
selection of “Network Protocol” menu function.
