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(1) NVOPEN (network vision sensor line open)
[Function]
Connects with the specified vision sensor and logs on to that vision sensor.
[Format]
NVOPEN□"<COM number>"□AS□#<Vision sensor number>
[Term]
<Com number> (Can not be omitted):
Specify the communications line number in the same way as for the Open command.
"COM1:" can not be specified by it is monopolized by the operation panel front RS-232C.
Setting range: "COM2:" – "COM8:"
<Vision sensor number> (Can not be omitted)
Specifies a constant from 1 to 8 (the vision sensor number). Indicates the number for the vision
sensor connection to the COM specified with the <COM number>.
Be careful. This number is shared with the <file number> of the Open command.
Setting range: 1 – 8
[Sample sentence]
100 IF M_NVOPEN(1)<>1 THEN 'If vision sensor number 1 log on is not complete
110
NVOPEN "COM2:" AS #1 ' Connects with the vision sensor connected to COM2 and sets its
number as number 1.
120 ENDIF
130 WAIT M_NVOPEN(1)=1
completed.
[Explanation]
1) Connects with the vision sensor connected to the line specified with the <COM number> and logs on to
that vision sensor.
2) It is possible to connect to a maximum of 7 vision sensors at the same time. <Vision sensor numbers>
are used in order to identify which vision sensor is being communicated with.
3) When used together with the Open command, the Open command <COM number> and <File number>
and the <COM number> and <Vision sensor number> of this command are shared, so use numbers
other than those specified with the Open command <COM number> and <File number>.
Example: Normal example
10 OPEN "COM1:" AS #1
20 NVOPEN "COM2:" AS #2
30 NVOPEN "COM3:" AS #3
number>
It is not possible to open more than one line in a configuration with one robot controller and one vision sensor.
If the same IP address is set as when the [NETHSTIP] parameter was set, an "Ethernet parameter NETHSTIP
setting" error occurs.
4) Logging on to the vision sensor requires the "User name" and "Password". It is necessary to set a user
name for which full access is set in the vision sensor and the password in the robot controller [NVUSER]
and [NVPSWD] parameters.
The user name and password can each be any combination of up to 15 numbers (0-9) and letters (A-Z).
(T/B only supports uppercase letters, so when using a new user, set the password set in the
vision sensor with uppercase letters.)
The user name with full access rights when the network vision sensor is purchased is "admin". The
password is "". Therefore, the default values for the [NVUSER] and [NVPSWD] parameters are
[NVUSER] = "admin" and [NVPSWD] = "".
When the "admin" password is changed with MELFA-Vision or a new user is registered, change the
[NVUSER] and [NVPSWD] parameters. When such a change is made, when the content of the
[NVPSWD] parameter is displayed, "****" is displayed. If the vision sensor side password is changed,
open the [NVPSWD] parameter and directly change the displayed "****" value. After the making the
change, reset the robot controller power.
[Caution]
When multiple vision sensors are connected to one robot controller, set the same user name and
' Connects with vision sensor number 1 and waits for logon to be
Error example
10 OPEN "COM2:" AS #1
20 NVOPEN "COM2:" AS #2 ⇒<COM number> used
30 NVOPEN "COM3:" AS #1 ⇒ <Vision sensor
Used
Vision Sensor Dedicated Commands and Status Variables 9-88
9 Detailed Explanation of Functions
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