Category: Emerson

The terminals are listed below:

TB3 RTD INPUT TERMINALS: The leads of the 3-wire RTD should be wired as shown.

If a 2-wire RTD is used, the RTD return and RTD sense terminals must be jumpered to avoid an open RTD sense wire warning.

TB2 Reference Electrode and Solution Ground: The reference electrode lead and its shield

and the solution ground lead should be grounded as shown. If the sensor does not have a solution ground, there are two options:

1. The reference voltage input and solution ground can be jumpered.

If this is done, the reference impedance will read a constant value of 0 kilohms.

2. The second method is to turn on the solution ground terminal and set the Reference

Impedance parameter (Reference Z) in the program menu (see Section 7.3.7) to High, 

thus turning off the reference impedance measurement.

If the solution ground terminal is left open without doing so, a high reference impedance fault alarm will continue to sound.

TB4 Preamplifier Power: The power wire from the pH sensor or preamplifier in the junction box is connected to this terminal to supply power to the preamplifier.

TB1 pH Electrode Input: The pH electrode lead and its shield are located on this terminal as shown.

Smart pH Sensor: The smart pH sensor has a ground wire (not to be confused with the solution ground wire)

that should be connected to the enclosure ground as shown in the power wiring diagram

Numatics 580 CHARM Node

The 580 CHARM node enables Easy solenoid valve

integration into DeltaV with Electronic Marshalling. The

new 580 CHARM node connects directly to the CIOC via

redundant CHARM Baseplate extender cables. DeltaV can

autosense the I/O as DO Solenoid Valve CHARMs the same

way as any other CHARM is autosensed in DeltaV.

Benefits of the new 580 CHARM Node include:

Redundant communications and power connections to

pneumatic valve manifolds.

Eliminates the need for additional dedicated networks

like Profibus-DP and simplifies system I/O mapping.

Expands the Electronic Marshalling I/O offering to include

ASCO Numatics pilot valve manifolds, enhancing the

concept of: “I/O Anywhere”.

Reduces programming and commissioning

time dramatically.

CHARM Keying Posts

The Terminal Blocks contain keying posts that are

automatically set and locked to the unique position of

the installed CHARM. The keys prevent the insertion of an

incorrect CHARM during maintenance activities. They are

shipped in a neutral position and are set when a CHARM is

inserted. If needed, the keys can be manually reset to allow

a channel to be re-tasked for a different signal type.

The keying mechanism consists of two keying posts that

rotate and lock into the terminal block base. Each CHARM

type is assigned a unique key setting.

Benefits of the new 580 CHARM Node include:

Redundant communications and power connections to

pneumatic valve manifolds.

Eliminates the need for additional dedicated networks

like Profibus-DP and simplifies system I/O mapping.

Expands the Electronic Marshalling I/O offering to include

ASCO Numatics pilot valve manifolds, enhancing the

concept of: “I/O Anywhere”.

Reduces programming and commissioning

time dramatically.

The 3-wire AI Fused Injected Power Terminal Block

is designed for 3 wire analog transmitters and can be

used with the AI 4-20mA HART CHARM. The field power is

supplied from the injected power bus on the baseplate,

but the power is not removed from the field device when

the AI CHARM is removed from the baseplate. There is

a Green LED on the terminal block that indicated power

is supplied to the field and the 2A fuse also functions

as a means to disconnect power from the field device.

Although this terminal block was introduced in 2017. it

is backwards compatible to any version of DeltaV with

Electronic Marshalling.

Although any signal type can be installed in any location on

the CHARM baseplates, it is recommended that AC voltage

circuits be separated from low voltage signals to comply

with safety recommendations and to mitigate induced noise

in the signals. Standard Terminal blocks, Fused Injected

Power terminal blocks and Relay Output Blocks can be used

on the same carrier, typically, to allow the use of DO 24V

DC isolated CHARMs on higher wattage and 3-wire devices

alongside of standard 24V DC instrumentation signals or

relay contacts.

The Relay Output Terminal Block is designed for high

output current applications and requires the DO 24V DC

High-side CHARM to drive the relay coil. The Relay Output

Term blocks provide a normally open and normally closed

contact with the following ratings:

• 28.8V DC at 5 A switching current

• 48V DC at 0.4 A switching current

• 110V DC at 0.2 A switching current

• 250V AC at 5 A switching current

The Thermocouple / mV Terminal Block is specially

designed for the usage with the Thermocouple / mV

CHARM. The Thermocouple / mV Terminal Block has fixed

key positions to prevent a mismatch in the field and can

only be ordered as an Assembly with the Thermocouple /

mV CHARM.

I/O Terminal Block Options

• There are six different I/O terminal blocks available to

meet the wiring needs of field signals

• Standard Terminal Block

• Fused-Injected-Power Terminal Block

• 3-wire DI Fused Injected-Power Terminal Block

• Relay Output Terminal Block

• Thermocouple / mV Terminal Block

• 3-wire AI Fused Injected Power Terminal Block

The Standard Terminal block can be used with all CHARM

types. For traditional wiring of field instrumentation,

the CHARMs provide loop power through the internally

distributed 24V DC field power. Refer to specific CHARM

specifications for wiring information.

The Fused-Injected-Power Terminal block, the 3-wire

DI Fused-Injected-Power Terminal block, and the 3-wire

AI Fused Injected Terminal block includes a 2A field

replaceable fuse. The 3-wire DI Fused-Injected-Power

Terminal block is designed to be used with all isolated

discrete Input CHARM types, while the Fused Injected

Power Terminal block is designed to work with all Isolated

discrete Output CHARM types, the 3-wire AI Fused

Injected Power Terminal block is used with AI 4-20mA

HART CHARM type creating a system-powered circuit that

can deliver up to 1 amp (DC) to the field.

Each baseplate has a local power bus that can be

connected to 24V DC or 120/230V AC through the injected

power input terminals, located on the Address Plug

terminal block. Both, the fused-injected power Terminal

Block, the 3-wire DI fused- injected power Terminal Block,

and the 3-wire AI Fused Injected Terminal block connect to

this power bus to provide system power to the field circuit

through the isolated CHARM. You can combine isolated and

system powered circuits on the same baseplate, however, all

system powered channels on a baseplate share the same power source.

CHARMs can be partially ejected to a locked position that

disconnects the field wiring from the system to perform

field maintenance actions or to remove power to a field

device. Activating the CHARM latch ejects the CHARM to the

detent position. Closing the latch locks the CHARM in place

and isolates the field wiring for field work.

Baseplate extenders and cables provide great flexibility to

the CHARM installation in existing cabinets or in custom

enclosures. Cables are redundant, each carrying 24V

DC field power, 6.3V DC CHARM power, and one of the

communication busses.

Bus termination provides added robustness for the

communication bus and is installed at the end of the

physical bus.

Label features are available to identify channel usage and

Baseplate identification to help with maintenance.

CHARMs can be added to any existing baseplate

position and autosensed online. Additional CIOCs can be

added online.

The CIOC carrier is mounted to the top of a vertical DIN

rail and up to eight CHARM Baseplates are mounted below

it, snapping easily to the DIN rail as they are connected to

each other. The bus termination assembly is attached at the

bottom. A standard DIN-rail lock is used to keep the entire

assembly in place.

A pair of CIOCs installs on the carrier and communicates

over a redundant Ethernet network with up to four

controllers, allowing great flexibility and ease of system

expansion. Communication modules are available for

copper and fiberoptic media.

Each baseplate is ordered with 12 terminal blocks: standard

terminal blocks, fused injected power terminal blocks, or

relay output terminal blocks.

Electronic Marshalling eliminates the need to partition the

I/O wiring to specific channels based on signal type. Simply

connect field signal multi-cores in an orderly fashion as

desired. Install the appropriate CHARM to complete the

field circuit and the signal is ready to be used by any one of

four controllers. No cross-wiring required.

Each CHARM acts as a circuit protection device and field

wiring disconnect. Signals are inherently current-limited

to protect against wiring faults to ground. Each CHARM

provides surge protection to meet industry standards in

the area of EMC. Under extreme overvoltage conditions

due to incorrect field wiring, the CHARM will act as a fuse to

protect adjacent channels. Signal faults are thus isolated to

the single CHARM.

Product Description

Electronic Marshalling hardware includes:

• CHARM I/O Carrier (DIN rail-mounted and supports

redundant pair of CHARM I/O Cards, redundant 24

V DC power connectivity, and redundant Ethernet

communication modules).

• CHARM I/O Card (CIOC) provides communication

between CHARMs and the Ethernet I/O network to

M-series, S-series, and PK Controllers. The CIOC has

Achilles Communications Certification Level 1 and the

redesigned CIOC2 has more computing power and

Achilles Communications Certification Level 2. The CIOC2

is a drop-in replacement for the CIOC (v13.3.1 or later

is required).

• CHARM Base plate (DIN rail-mounted with interleaving

power and bus connectors. Supports 12 CHARMs and

their terminal blocks, as well as connection for injected

field power).

• CHARM Terminal Block (removable terminal block

providing terminal connections to field wiring and

physical latch for CHARM).

• CHARMs (Characterization Module for each field signal.

Provides basic analog to digital conversion and signal

isolation to the redundant communication bus).

• Cable Extenders that provide flexibility in

carrier mounting.

• I/O bus termination (provides bus terminations for

redundant I/O bus).

• Labeling features for baseplate and channel identification.

Complete DeltaV solution: Migrate from your legacy system

with the comfort that when complete you will have a complete

DeltaV solution, not a combination of standard and custom

hardware/software to support. Every piece of the migration

panel is standard DeltaV hardware and can be supported with

the same personnel and spare equipment that every other

CHARMs and DeltaV installation uses.

Plug and play I/O: The DeltaV CIOC has been designed for

ease of use, both in physical installation and its software tools.

Components snap together with secure DIN-rail latches and

interlocking carrier connectors. Insert the CHARMs and auto

sense the node to create the I/O definition automatically in

your DeltaV configuration database. CHARMs use a self-keying

system to automatically set a channel for a specific CHARM

type. Users cannot mistakenly insert a CHARM into the wrong

terminal block. Assign all, one, or any number of channels to a

controller with a simple click and drag.