PLC Backup station

From PlcWiki

(Difference between revisions)
Jump to: navigation, search
(Created page with 'Backup station is universal station which can be used as temporary replacement of any station in line. So that this station should be hardware universal too. To configure PLC ba…')
 
(7 intermediate revisions not shown)
Line 1: Line 1:
-
Backup station is universal station which can be used as temporary replacement of any station in line. So that this station should be hardware universal too.
+
Backup station is a universal station which can be used as a temporary replacement of any station in assembly line. So that this station should be hardware universal too.
To configure PLC backup station follow these steps:
To configure PLC backup station follow these steps:
-
1) Install station as common station
+
1) Install the station PC as a common station
-
2) Modify boot menu
+
2) Install package plc_backup_station
-
Modify of /boot/grub/grub.conf file is needed. Each choice must include parameter specify station, it includes last number from IP address.
+
yum install plc_backup_station
-
Here is an example of one choice:
+
Optional steps:
-
title <b>SOME LABEL</b>
+
-
        root (hd0,0)
+
-
        kernel /vmlinuz-2.6.36-5.fc15.i686 ro root=/dev/mapper/vg_plcplmbk1-lv_root <b>panic=203</b>
+
-
        initrd /initramfs-2.6.36-5.fc15.i686.img
+
-
        savedefault
+
-
It is possible to use script <i>plc_backup_bootmenu_gen</i> to generate boot menu. Before you use this script, copy original <i>grob.conf</i> from desired backup station to kernel directory <i>$PLC_EtcDir/workstations/backup_pc/grub.conf.master</i>. Generated configuration file you can find in <i>$PLC_EtcDir/workstations/backup_pc/grub.conf</i>.
+
-
Copy generated file back to desired backup station.
+
-
3) Change starting script
+
3) Update configuration file /etc/rc.d/plc.cfg.
-
Copy this [[Media:PlcRestore.cfg.zip]] script to /etc/rc.d directory. Replace init script in /etc/init/plc.conf (Fedora Core 14) by this one.
+
NoSort - Don't sort the workplace IDs, leave them in the plan order instead
 +
 
 +
TimeOut - Workplace selection timeout in seconds, waits one year by default
 +
 
 +
RememberLastRole - Pre-select the last role in the workplace selection menu
 +
 
 +
4) Increase screen resolution. If you have some station on line with increased resolution, increase resolution of backup station too. To be able run this workplace on backup. To do it edit file /boot/grub/grub.conf. Find line starting by "kernel" and add parameter to end of this line " vga=<mode_number>". List of possible <mode_number> follows. Mode 771 seems to be a reasonable first-choice setting.
 +
 
 +
{| class="wikitable"
 +
|-
 +
!Color depth
 +
!640x480
 +
!800x600
 +
!1024x768
 +
!1280x1024
 +
|-
 +
| 256 (8bit)
 +
| 769
 +
| 771
 +
| 773
 +
| 775
 +
|-
 +
| 32000 (15bit)
 +
| 784
 +
| 787
 +
| 790
 +
| 793
 +
|-
 +
| 65000 (16bit)
 +
| 785
 +
| 788
 +
| 791
 +
| 794
 +
|-
 +
| 16.7 Mill.(24bit)
 +
| 786
 +
| 789
 +
| 792
 +
| 795
 +
|}

Current revision as of 09:36, 15 December 2011

Backup station is a universal station which can be used as a temporary replacement of any station in assembly line. So that this station should be hardware universal too.

To configure PLC backup station follow these steps:

1) Install the station PC as a common station

2) Install package plc_backup_station 

yum install plc_backup_station

Optional steps:

3) Update configuration file /etc/rc.d/plc.cfg. 

NoSort - Don't sort the workplace IDs, leave them in the plan order instead

TimeOut - Workplace selection timeout in seconds, waits one year by default

RememberLastRole - Pre-select the last role in the workplace selection menu

4) Increase screen resolution. If you have some station on line with increased resolution, increase resolution of backup station too. To be able run this workplace on backup. To do it edit file /boot/grub/grub.conf. Find line starting by "kernel" and add parameter to end of this line " vga=<mode_number>". List of possible <mode_number> follows. Mode 771 seems to be a reasonable first-choice setting.

Color depth 640x480 800x600 1024x768 1280x1024
256 (8bit) 769 771 773 775
32000 (15bit) 784 787 790 793
65000 (16bit) 785 788 791 794
16.7 Mill.(24bit) 786 789 792 795
Retrieved from "http://plcwiki.clever.cz/index.php/PLC_Backup_station"
Personal tools