E-Prime 2.0 provides the ability to choose from available clocks via the E-Studio GUI. The clock is specified from the Timing tab on the Experiment Object Properties:
When the E-Prime Realtime Clock is selected, then no additional settings are required unless the Experiment Advisor flags a rare problem with the clock and Windows XP (see NEW FEATURE: Experiment Advisor Module - Volatile Clock on Windows XP  for details).
When the SNTP Realtime Clock is selected, then additional property settings are required. A file named SNTPClockExtension.ini file must be created to specify the required property (the IP address of the NTP server) along with any combination of the optional properties (see below). The SNTPClockExtension .ini file must be in one or both of the following locations:
- the same location as the SNTPClockExtension.ebn file. The default location for this file is C:\Program Files (x86)\E-Prime 2.0\Program. Note that administrator privledges are usually needed in order to create or edit files in this folder.
- the My Experiments folder. This location is recommended for easier editing by users who do not have administrator privledges.
The SNTPClockExtension can contain the following properties in the [General] section:
|IP||IPv4 address of NTP server (default: invalid/error)|
|Port||Port to connect to (default: 123)|
|PollInterval||Time in milliseconds to poll NTP Clock Server|
|Timeout||Time in milliseconds to wait for response from NTP Clock Server|
|Affinity||Enable/disable logging (default: 1)|
|Log||Prohibit servers IPs outside RFC1918 local ranges (default: 1)|
|LocalOnly||0/1 Used to prohibit settings to be performed in My Experiments|
NOTE: E-Prime 126.96.36.199 and later will only use the settings from the E-Studio clock GUI and will ignore any settings in the E-Run.ini file.
This topic applies to:
This item introduced in E-Prime 188.8.131.52
NEW FEATURE: SNTP Clock configuration options can now be accessed from the Experiment Object