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Control/Display Unit
VL-50A Rear Panel VL-50AS Rear Panel
RS-232C Communication Function
Command list
Command format Response output Operation content
GA**CRLF G#**, +01234.567CRLF A display value is outputted via RS-232C
“**” indicates gage channel numbers 01 to 99 (00 for all channels).
If LINK connection does not need to be made, set the channel number to 01.
“#” indicates the type of data (N: current value, X: maximum value, M: minimum value, and W: TIR).
CN**CRLF CH**CRLF The display is switched to the current value.
CX**CRLF CH**CRLF The display is switched to the maximum value.
CM**CRLF CH**CRLF The display is switched to the minimum value.
CW**CRLF CH**CRLF The display is switched to the TIR value.
CR**CRLF CH**CRLF The display is zero-set.
CL**CRLF CH**CRLF The peak value is cleared.
CP**, +01234567CRLF CH**CRLF The preset value is inputted.
CD**, +01234567CRLF CH**CRLF Input tolerance limit S1
Perform tolerance setup in the order of CD and CG for 3-step tolerance judgment, and in the order of
CD, CE, CF, and CG for 5-step tolerance judgment.
An error message is outputted if there is a diffirence in tolerance limit order.
If this is the case, repeat setup from the beginning of the CD command.
CE**, +01234567CRLF CH**CRLF Input tolerance limit S2.
CF**, +01234567CRLF CH**CRLF Input tolerance limit S3.
CG**, +01234567CRLF CH**CRLF Input tolerance limit S4.
CS**CRLF CH**CRLF An error is canceled.
VS**, +$CRLF CH**CRLF Spindle control
Sign +: Moves up the spindle, -: Moves down the spindle.
$: Speed specification 0: Stop, 1: 2mm/s, 2: 4mm/s, 3: 8mm/s approx.
VT**CRLF CH**#CRLF Status of spindle condition
In place of #, 0: Normal, 1: Upper dead point limit, 2: WORK ON
Channel number 00 cannot be used.
Pin No. Signal name Input/Output Definition
2 RXD IN Receive data
3 TXD OUT Transmit data
4 DTR OUT Data terminal ready
5 GND — Ground
6DSR IN Data set ready
7 RTS OUT Request to send
8 CTS IN Clear to send
1,9 NC — Unconnected
Communication protocol
(EIA RS-232C compatible)
Home position DTE (terminal) and cross cable are to be used.
Communication method half-duplex, non-procedural
Baud rate 4800, 9600, 19200bps
Bit configuration Start bit: 1
Data bits: (7 or 8) ASCII, uppercase
Parity bit: None, even, or odd
Stop bits: 2
Communication condition setup Set with parameters.
• Receptacle specification: D-sub 9-pin
(male), inch thread spec.
• Applicable plug specification: D-sub 9-pin
(female), inch thread spec.
Pin assignment
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