AMX I!-TIMEMANAGER Bedienungsanleitung

instruction manual

integration!Solutions

i!-TimeManager

Software Limited Agreement

LIMITED WARRANTY

LIMITED WARRANTY. AMX Corporation warrants that the SOFTWARE will perform substantially in accordance with

the accompanying written materials for a period of ninety (90) days from the date of receipt. Any implied warranties on

the SOFTWARE and hardware are limited to ninety (90) days and one (1) year, respectively. Some states/countries do

not allow limitations on duration of an implied warranty, so the above limitation may not apply to you.

CUSTOMER REMEDIES. AMX Corporation’s entire liability and your exclusive remedy shall be, at AMX Corporation's

option, either (a) return of the price paid, or (b) repair or replacement of the SOFTWARE that does not meet AMX Cor-

poration's Limited Warranty and which is returned to AMX Corporation. This Limited Warranty is void if failure of the

SOFTWARE or hardware has resulted from accident, abuse, or misapplication. Any replacement SOFTWARE will be

warranted for the remainder of the original warranty period or thirty (30) days, whichever is longer.

NO OTHER WARRANTIES. AMX Corporation disclaims all other warranties, either expressed or implied, including, but

not limited to implied warranties of merchantability and fitness for a particular purpose, with regard to the SOFTWARE,

the accompanying written materials, and any accompanying hardware. This limited warranty gives you specific legal

rights. You may have others which vary from state/country to state/country.

NO LIABILITY FOR CONSEQUENTIAL DAMAGES. In no event shall AMX Corporation be liable for any damages

whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business

information, or any other pecuniary loss) arising out of the use of or inability to use this AMX Corporation product, even

if AMX Corporation has been advised of the possibility of such damages. Because some states/countries do not allow

the exclusion or limitation of liability for consequential or incidental damages, the above limitation may not apply to you.

U.S. GOVERNMENT RESTRICTED RIGHTS

The SOFTWARE and documentation are provided with RESTRICTED RIGHTS. Use, duplication, or disclosure by the

Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of The Rights in Technical Data and Com-

puter Software clause at DFARS 252.227-7013 or subparagraphs (c)(1) and (2) of the Commercial Computer Soft-

ware--Restricted Rights at 48 CFR 52.227-19, as applicable. Manufacturer is AMX Corporation, 3000 Research Drive,

Richardson, TX 75082.

If you acquired this product in the United States, this Agreement is governed by the laws of the State of Texas.

Should you have any questions concerning this Agreement, or if you desire to contact AMX for any reason, please

write: AMX Corporation, 3000 Research Drive, Richardson, TX 75082.

Table of Contents

i!-TimeManager

Table of Contents

Introduction ...............................................................................................................1

Supported Operating Systems .......................................................................................... 1

Minimum PC Requirements .............................................................................................. 1

Installing i!-TimeManager .................................................................................................. 2

Time Protocols ..........................................................................................................3

DayTime Protocol.............................................................................................................. 3

Time Protocol .................................................................................................................... 4

SNTP Protocols................................................................................................................. 4

Choosing a Protocol .......................................................................................................... 4

Programming i!-TimeManager .................................................................................7

i!-TimeManagerEngineMod Module Definition .................................................................. 7

Channels ........................................................................................................................... 9

Commands ........................................................................................................................ 9

Strings ............................................................................................................................. 10

ii i!-TimeManager

Table of Contents

Introduction

i!-TimeManager

Introduction

i!-TimeManager™is an application that syncs the NetLinx™Master clock to an Internet time

server. Internet time servers provide highly accurate time and i!-TimeManager keeps the NetLinx

Master synchronized to the time servers. i!-TimeManager accounts for daylight saving time

changes (DTS changes) using U.S. or custom DTS rules. i!-TimeManager also calculates and

provides events for sunrise and sunset.

Supported Operating Systems

 Windows 95®/98®(with at least 48 MB of installed memory)

 Windows NT 4.0®Workstation or Server (service pack 6 B or greater, with at least

64 MB of installed memory)

 Windows 2000®Professional or Server (running on a Pentium 266 MHZ processor

(minimum requirement); 300 MHZ or faster recommended, with 96 MB of installed

memory.)

 Windows ME®(running on a Pentium 266 MHZ processor (minimum requirement);

300 MHZ or faster recommended, with 96 MB of installed memory.)

 Windows XP®(running on a Pentium 266 MHZ processor (minimum requirement);

300 MHZ or faster recommended, with 128 MB of installed memory.)

Minimum PC Requirements

 Windows-compatible mouse (or other pointing device)

 At least 5 MB of free disk space (150 MB recommended)

 SVGA monitor, with a minimum screen resolution of 800 x 600

 A Network adapter

Introduction

2i!-TimeManager

Installing i!-TimeManager

1. In Explorer, double-click i!-TimeManagerSetup.exe from the directory window where you

downloaded the i!-PCLinkMediaPlayer install program.

2. After reading the License Agreement, select I Agree and Next to proceed.

3. The Welcome To i!-TimeManager Setup dialog opens, reminding you to close all Windows

programs before going any further. Click Next to proceed.

4. In the i!-TimeManager Select Components dialog, select which example programs you would

like to install.

5. In the Select i!-TimeManager Install Location dialog, use the Browse button to navigate to a

directory other than the default install directory, if desired. Click Next.

6. In the i!-TimeManager Shortcut Creation dialog, select Install Shortcut Icons for the installed

components on your desktop, if desired.

7. Click Next in the Start i!-TimeManager Installation dialog to install the selected components.

8. The program prompts you to restart your system to complete the installation.

Time Protocols

i!-TimeManager

Time Protocols

i!-TimeManager supports four time protocols:

 DayTime (13/udp, 13/tcp)

 Time (37/udp, 37/tcp)

 SNTP (123/udp)

 SNTP Broadcast (123/udp)

Only one of the protocols can be active at a time.

DayTime Protocol

The DayTime protocol is based on RFC 867 and can provide Day and Time information. While the

Daytime protocol can provide accurate day and time formation, RFC867 does not specify the actual

format for the message. This limits the usefulness of the DayTime protocol with one exception: The

National Institute of Standards and Technology operate a series of Time Servers, known as the

NIST Internet Time Servers, that provide a DayTime message of fixed format than can be reliably

parsed and can be used to accurately set the Day and Time of any clock. While these Time Servers

reside in the US, the Day and Time of the servers is supplied in Universal time Coordinates or

UTC. i!-TimeManager is capable of connecting to any of the NIST Time servers and calculating the

correct time and date for any location in the world. i!-Time Manager also supports the standard

NIST server list, a file called nist-srv.lst, and will attempt to read this file from doc:\user\time. You

may get a copy of this file from the /pub directory on any NIST timeserver. If this file cannot be

found on the NetLinx file system, a default list of NIST servers will be used instead. See the NIST

home page at http://www.boulder.nist.gov/timefreq/index.html for more information on NIST Time

service or Servers.

Additionally, i!-TimeManager has also been written to use a "popular" DayTime format which is

used by the Linux implementation of DayTime and Tardis, a popular time syncing software.

Although not specified, the Date and Time of this format does not specify the time zone and is

assumed to be local. If you select DayTime protocol and select a server that is running DayTime

and the format, specifically "DayOfWeek Month Day HH:MM:SS Year", can be found, no time

offset will be added. If you have chosen this combination and find that the time does not

synchronize to the correct time, choose another protocol or server.

Time Protocols

4i!-TimeManager

Time Protocol

The Time protocol, based on RFC868, is a very simple straightforward time protocol providing the

number of seconds that have transpired since January 1, 1900 UTC. The current Date and time can

easily be calculated form this value. However, the number of seconds in this protocol is provides as

a 32 bit unsigned number, which can represent a maximum value of 4294967295 (2 ^ 32).

4294967295 seconds from January 1st, 1900 occurs on Feb 7, 2036 at 6h 28m 16s. Therefore, this

protocol can only accurately represent time before this date. Many of the NIST servers, as well and

many Unix, Linux and Windows programs, can provide this time protocol, and it can be reliably

used up until Feb 7, 2036.

SNTP Protocols

The last two Time protocols share the same message format but differ in their connection scheme.

SNTP stands for Simple Network Time Protocol, a subset of NTP or Network Time Protocol, is

based on RFC2030. It is a highly accurate measure of time and date and also measures Date and

Time as the number of seconds from January 1st 1900. However, the number of seconds is provided

in two parts: the number of whole seconds, with a range of 4294967295 (2^32) and fractions of a

second also with a range of 4294967295 (2^32). The Netlinx Master is not able to take advantage of

the fractions of a second offered by SNTP and therefore has the same accuracy as the Time protocol

but SNTP also provides information about the integrity of the data supplied. This makes the SNTP

protocol more accurate than the Time protocol. RFC2030, which defines the SNTP protocol, has

also made a provision for Dates and Time after Feb 7, 2036. SNTP message can represent a Date

and Time accurately until some time in the year 2104. Most of the NIST servers also provide Date

and Time information in SNTP format.

The difference between SNTP (123/udp), SNTP Broadcast (123/udp) is simply one of connection.

It is possible to configure an SNTP server to broadcast the time in SNTP format to an entire

network or node of a network. i!-TimeManager can be configured to actively retrieve the time in

SNTP format from an SNTP server (protocol number 3) or simply listen for SNTP broadcasts on

the network (protocol number 4). Although SNTP broadcasting may sound like an ideal solution

for Date and Time information, the Network Administrator should make this decision.

Choosing a Protocol

So why did we implement so many time protocols? Which Timeserver protocol should you use?

This depends on your Network configuration and your Network administrator. It is probable that

your network already provides some form of Date and Time information, and that information is

probably obtained from a highly accurate source. Most installations of i!-TimeManager should

make use of the time server protocols already available on your network. To find out if such

services are available on your network, contact you Network Administrator.

You might also like to look at commercially available software for Time synchronization.

i!-TimeManager has been tested with Tardis 2000 (http://www.kaska.demon.co.uk) which can

provide all versions of the Time protocols above, including SNTP broadcasting. If you are

interested in synchronizing many computers as well as i!-TimeManager, Tardis 2000 provides a

great solution.

For simple Date Time synchronization, select DayTime (value=1) and leave the server field blank.

A default NIST server will be selected. Most NIST servers supply all three formats of Date and

Time Protocols

i!-TimeManager

Time protocols, but the DayTime is the most common protocol provided by NIST servers.

i!-TimeManager will synchronize the NetLinx Master’s time with the servers at NIST. It would be a

good idea to setup the DNS server entries on the NetLinx Master but not required. If the name

lookup fails for a given server name, the IP address is tried directly. It may take a couple of

attempts, but a server will be located and time synchronization will occur.

Time Protocols

6i!-TimeManager

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