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Opticon MDI-4100 - Figure 13: no Handshake; Handshaking (Flow Control)

Opticon MDI-4100
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MDI-4000 Series Serial Interface Manual
22
Use these commands to set the number of data bits, type of parity bit, and number of stop bits.
To activate and save the new configuration, you need to use the Z2 command (save settings in
non-volatile memory).
Data Bit, Parity Bit, and Stop Bit Commands
Data, Parity, and Stop Bit
Command
Description
Default
Data bit
L0
7 data bits
L1
8 data bits
Parity bit
L2
No parity
L3
Even parity
L4
Odd parity
Stop bit
L5
1 stop bit
L6
2 stop bits
4.1.6 Handshaking (Flow Control)
Handshaking is a communication control method.
To activate and save the new configuration, you need to use the Z2 command (save settings in
non-volatile memory).
Handshaking Commands
Command
Description
Default
P0
No handshake
P1
Busy/ready
P2
Modem
P3
ACK/NAK
P4
ACK/NAK NO RESPONSE
4.1.6.1 No Handshake:
The scan engine communicates regardless of the state of the host system. In this setting, the
commands from the host system may not be received correctly.
Figure 13: No Handshake
Scan Engine
Host System
TxDTxD
RxD RxD

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