Overview
Time stamping can be applied to Quantum or Modicon M340 PLC architectures.
The following table presents the devices combination required in an applicative time stamping architecture:
PLC (local drop) |
Ethernet Remote I/O Drop |
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|---|---|---|---|---|---|
Family |
Time Stamping Source |
Time Synchronization |
Family |
Time Stamping Source |
Time Synchronization |
Modicon M340 |
BMX ERT 1604 T |
DCF77 or IRIG-B 004/5/6/7 |
N.A. |
N.A. |
N.A. |
Quantum (1.) |
140 ERT 854 •0 |
DCF77 or IRIG-B 004/5/6/7 (4.) |
Quantum (2.) |
140 ERT 854 •0 |
DCF77 or IRIG-B 004/5/6/7 (4.) |
Modicon X80 (Modicon M340) (2.) |
BMX CRA 312 10 |
NTP Server (3.) |
|||
BMX ERT 1604 T |
DCF77 or IRIG-B 004/5/6/7 |
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Mix of both possible sources:
|
Each source has its time reference:
|
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N.A. Not Applicable 1. Quantum Hot Standby configurations are compatible with applicative time stamping. 2. A time stamping architecture may contain several Ethernet remote I/O drops with time stamping sources. 3. A single NTP server can provide time reference to many BMX CRA 312 10 modules. 4. A TSX NTP 100 module can provide an RS485 time source (based on an NTP server) to the 140 ERT 854 20 module. The 140 ERT 854 10 module only accepts DCF77 time synchronization. |
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The following topics present graphically some of the devices combination allowed in an applicative time stamping architecture (it is not an exhaustive list, it represents typical application examples).
Quantum PLC (Local Drop) With a 140 ERT 854 •0 Module
In this example, the Quantum local drop contains a 140 ERT 854 •0 module.
The 140 ERT 854 •0 module is the time stamped events source.
The time source is a GPS module connected to the 140 ERT 854 •0.
Quantum PLC with a Quantum Ethernet I/O Drop Including a 140 ERT 854 •0 Module
In this example, the Quantum Ethernet I/O architecture contains a Quantum Ethernet remote I/O drop.
The 140 ERT 854 •0 module is the time stamped events source.
The time source is a GPS module connected to the 140 ERT 854 •0.
Quantum PLC with a Modicon X80 Drop
In this example, the Quantum Ethernet I/O architecture contains a Modicon X80 (Modicon M340) Ethernet I/O drop.
On the remote I/O drop, the BMX CRA 312 10 module is the time stamped events source. It time stamps I/O transitions on the discrete I/O modules in the remote I/O drop.
The time source is an NTP server connected to the Ethernet remote I/O bus.
Quantum PLC with a Modicon X80 Drop Including BMX ERT 1604 T and BMX CRA 312 10 Modules with a GPS Time Reference
In this example, the Quantum Ethernet I/O architecture contains 2 Modicon X80 (Modicon M340) Ethernet I/O drops.
On each remote I/O drop, either BMX CRA 312 10 or BMX ERT 1604 T modules are the time stamped events sources.
The time source is an NTP server connected to a GPS source for the BMX CRA 312 10 modules and a dedicated GPS source for the BMX ERT 1604 T module.