1756HP-TIME Allen‑Bradley ControlLogix High Precision Time Synchronization Module

Product Description

1756HP-TIME is a high-precision grandmaster time synchronization module for Rockwell Automation ControlLogix 1756 chassis platform. It is a rack-mounted module that acquires high accuracy UTC time from multiple sources including GPS, IRIG-B, PTP and NTP, then distributes synchronized time across the ControlLogix backplane and Ethernet network. It provides Coordinated System Time (CST) for the Logix controller, supports sequence-of-events (SOE) high-resolution timestamp recording, with typical time accuracy up to ±100ns locked to GPS reference source.

Product Features & Functions

• High precision time grandmaster module for ControlLogix chassis, powered by backplane
• Multiple time input sources: GPS (NMEA+1PPS), IRIG-B, IEEE1588 PTP and NTP backup
• Multi-protocol time output: PTP, NTP/SNTP, CIP Sync, IRIG-B output and 1PPS pulse
• Delivers CST and UTC time to ControlLogix backplane for controllers and SOE modules
• BNC port for IRIG-B signal, RJ45 Ethernet port for network time distribution
• High-resolution time stamping for sequence of events (SOE) and fault event logging
• Web configuration interface for time source selection, status monitoring and diagnostics
• LED indicators for GPS lock, time sync status, fault and power status
• Requires Studio 5000 Logix Designer with dedicated AOP add-on profile

Application Scenarios

• Power plant, substation and oil & gas process control with SOE event recording
• Large distributed EtherNet/IP automation networks requiring unified high precision time
• Petrochemical, refinery critical safety system time synchronization
• Multi-axis motion control systems that need precise time alignment across drives
• ControlLogix redundant rack deployment and legacy system upgrade for time sync

FAQ

Q: What is 1756HP-TIME used for?
A: It is a high-precision grandmaster time sync module for ControlLogix chassis, used to provide unified UTC/CST time for controllers, SOE modules and network devices.

Q: What time accuracy can this module achieve?
A: Typical ±100ns time accuracy against UTC when locked to GPS or IRIG-B reference source.

Q: Is 1756HP-TIME still available from Rockwell?
A: It is an active product. Original new units are available from authorized Rockwell distributors and industrial spare parts vendors.