Answer Posted / carl_ellis

Given that 2 wire loop powered transmitters need approvals
for use in hazardous areas to be competitive, most, if not
all, transmitters regulate what changes can be made to
their products by limiting what spare parts or updates can
be made to an original product.

A hazardous area approval (FM, ATEX) is granted for the
transmitter as it is submitted to the approval agency.
Changes to the transmitter require re-approval with all the
associated costs of re-approving a device.

Changing the internal firmware or any of the internal
hardware would void the approval on the original device.
That could make the manufacturer liable in case of failure
of the instrument.

Firmware revisions are not offered for the base functions
of field transmitters.

An accessory item, like a digital display, that is not a
core element of the measuring and reporting function can
sometimes be swapped out with other units of different
firmware versions.

Sensor bodies for pressure transmitters and entire
electronic heads can be exchanged, or entire electronic
card assemblies can be exchanged, but firmware updates are
not available for devices that have agency approvals for
hazardous areas.

Software drivers for communications protocols change over
time and matching the firmware revision of a field
transmitter to its DD (Device Descriptor) or EDDL or DTM or
DOF file can be a challenge, but these are software files
used by communicators or PC/modem communication software.
The instrument manufacturer posts these kinds of files on
their web sites for download.

Carl Ellis
Measure First

Yokogawa CENTUMVP R6.09 unable to download to Engineering Station with ExaOPC R3.75 The issue is when I try to download the common project section to the Engineering Station (STN) from the HIS in System View, it is unable to connect. The error displayed is: WARNING: Could not connect to equalize destination. (7001) Retrying. Number of retries = 0/1 ERROR: LdXopsLoadMain: connect error 10060 ERROR: Processing terminated due to connection error. (7002) Equalization end with errors. STN0149 ---- ERROR = 2 WARNING = 1 ---- Background: >Updated the ExaOPC software on the STN from 3.60 to 3.75 >STN operating system is Windows Server 2008 R2 >HIS operating system is Windows Server 2016 Stanard Solutions attempted include: >Ensuring all IP addresses are correct and all networked devices can be pinged. >The ability to ping a device using its host name from another device ( from HIS) >Ensure both devices firewalls are disabled. >The antivirus installed on the STN is disabled. >Ensuring both devices are within the same workgroup. >Added both devices to each other's Host and LMHost files. >Running IT Security tool after changing any administrative settings.

2139

---

how does we calibrate a square root flow transmitter ,give an example and explain it step by step like range calculation , calibration hook up series connection , zero check , and how to apply pressure , and if not geting proportional output then what should we do ?

5626

---

Name different types of bourdon tubes.

1076

---

What is the use of control cable?

1092

---

Please can anybody help for control valve sizing step by step procedure?

2063

---

If fire would be inside the plant which fire detector is to detected the fire.

1543

---

what is difference between HOT permit and cold permit

2103

---

what is the PC interface and software for connection to ABB logic module “ LM011-CE18RAC “ ( for Programming ) ??

3951

---

What is difference between ESD and PLC please Explain me clearly.

4829

---

Please tell me details about Sox,Nox,SWAS analyser????

3673

---

How to calibrate radar type level transmitter for interface level? Total liquid(liq.1 and liq.2), level both the liq individually? For. Both the liquid levels how the signal will go from transmitter to dcs? How to calibrate. Single radar 9:26:55 AM for 2 different liquids in a tank?

2288

---

There are two chlorination tonners both are connected to two pressure swithes and the pressure switch is connected to SOV which operates the valve to changeover the tonner selection i.e if pressure one tonner goes low the other tonner should come in line if it is inautomatic selection design a circuit using relays ?

1905

---

If relative y axis vibration sensor is by passed, and relative x axis and absolute sensor is left working. how much monitoring i would have risked?

1404

---

What is sensitivity in vibration probes..?

1571

---

Can anybody tell me which type of question are asked in the interview for the FORMULATION(Pharma) as a instrumentation engineer, & question in building managment system.

1971

---