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moxa-irigb-tools

Moxa IRIG-B Tools​

Utility for controlling IRIG-B expansion module, compile and install the IRIG-B time sync daemon

moxa-irigb-tools

Support Model​

Prerequisite​

Before use moxa-irigb-tools, you should install moxa-irigb-driver driver as below.

Usage​

1. Disable NTP service​

  • Disable service
timedatectl set-ntp false
caution

NTP service affects IRIG-B service time syncing.

  • Make sure NTP service is inactive
timedatectl status
               Local time: Mon 2023-02-13 02:27:54 PST
           Universal time: Mon 2023-02-13 10:27:54 UTC
                 RTC time: Mon 2023-02-13 10:27:54
                Time zone: America/Los_Angeles (PST, -0800)
System clock synchronized: yes
              NTP service: inactive
          RTC in local TZ: no

2. Build and install IRIG-B time sync service​

  • Install build tools (Ubuntu/Debian)
apt update && apt install build-essential -y
  • Install build tools (CentOS)
yum groupinstall "Development Tools"
  • Build and install
make && make install

3. Config IRIG-B time sync service​

  • Edit /usr/sbin/mx_irigb.sh to config service options MX_IRIGB_SERVICESYNCTIME_OPTS.
    info

    For more detial about options, please refer to ServiceSyncTime -h

...
# The time sync daemon default configure wtih
#   -t 1 - Sync time in DIFF signal format
#   -i 10 - The time interval in 10 seconds to sync the IRIG-B time into system time.
#   -B - Run daemon in the background
#
MX_IRIGB_SERVICESYNCTIME_OPTS="-t 1 -i 10 -B"
...

4. Start IRIG-B time sync service​

  • Create and edit systemd service file /lib/systemd/system/mx_irigb.service
[Unit]
Description=Moxa DA-IRIG-B daemon service

[Service]
Type=oneshot
ExecStart=/usr/sbin/mx_irigb.sh start
ExecStop=/usr/sbin/mx_irigb.sh stop
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target
  • Launch service
$ systemctl daemon-reload
$ systemctl enable mx_irigb.service
Created symlink /etc/systemd/system/multi-user.target.wants/mx_irigb.service → /lib/systemd/system/mx_irigb.service.
$ systemctl start mx_irigb.service
$ systemctl status mx_irigb.service
● mx_irigb.service - Moxa DA-IRIG-B daemon service
     Loaded: loaded (/lib/systemd/system/mx_irigb.service; enabled; vendor preset: enabled)
     Active: active (exited) since Tue 2023-02-14 01:48:29 PST; 5s ago
    Process: 8322 ExecStart=/usr/sbin/mx_irigb.sh start (code=exited, status=0/SUCCESS)
   Main PID: 8322 (code=exited, status=0/SUCCESS)
        CPU: 9ms

Feb 14 01:48:29 moxa systemd[1]: Starting Moxa DA-IRIG-B daemon service...
Feb 14 01:48:29 moxa systemd[1]: Finished Moxa DA-IRIG-B daemon service.

Last updated on 2023-02-15 by Wilson Huang