red lion PM-50 User manual

1
Install 50RS232-A
Drawing No. LP1143
Effective 08 2021
PM-50 RS232 Serial Communications Module
Installation Guide
MODULE PACKAGE CHECKLIST
This product package should contain the items listed below. If
any items are missing or damaged, contact Red Lion immediately.
- Panel Mount RS232 Serial Communications Module
- Accessory Pack
- Installation Guide
DIMENSIONS In inches (mm)
SAFETY SUMMARY
All safety related regulations, local codes and instructions that
appear in this document or on equipment must be observed to
ensure personal safety and to prevent damage to either the
device or equipment connected to it.
Do not use these products to replace proper safety interlocking.
No software-based device (or any other solid-state device) should
ever be designed to be responsible for the maintenance of
personnel safety or consequential equipment not equipped with
safeguards. Red Lion disclaims any responsibility for damages,
either direct or consequential, that result from the use of this
equipment in a manner not specified.
ORDERING INFORMATION
PART NUMBER DESCRIPTION
PMM000CM23200000 RS232 Serial Communications Module
A listing of the entire PM-50 family of products and accessories
can be found at www.redlion.net.
1.76
(44.80)
1.76
(44.80)
1.34
(34.10)
Bottom
CAUTION: Risk of Danger
Read complete instructions prior to installation and
operation of the unit.
ATTENTION : Risque de danger
Lire les instructions complètes avant l’installation et
l’utilisation de l’appareil.
WARNING - EXPLOSION HAZARD - SUBSTITUTION
OF COMPONENTS MAY IMPAIR SUITABILITY FOR
CLASS I, DIVISION 2
AVERTISSEMENT - DANGER D’EXPLOSION - LE
REMPLACEMENT DE COMPOSANTS PEUT NUIRE À
L’APTITUDE À LA CLASSE I, DIVISION 2
This equipment is suitable for use in Class I, Division 2,
Groups A, B, C, D, or non-hazardous locations only.
Cet équipement est adapté à une utilisation dans des
endroits de classe I, Division 2, Groupes A, B, C, D, ou
dans des endroits non dangereux seulement.
zRemovable terminal block
zHardware status LEDs
FOR USE IN HAZARDOUS LOCATIONS:
Class I, Division 2, Groups A, B, C, and D
T4A
C
C
US
US
UL
R
LISTED
IND.CONT. EQ.
E317425

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Drawing No. LP1143 Effective 08 2021
HARDWARE INSTALLATION
Installing a Module
To a 4.3 inch Host
1. To install a module on the tall side of a 4.3 inch host, align the
latches of the module with the host case such that the
backplane connector shroud on the module cover aligns with
the backplane connector opening in the host case.
2. To install a module on the short side of a 4.3 inch host, rotate
the module 180 degrees and align the latches on the host
with the module case so that the I/O connector is facing
downward.
3. Insert the host latches into the openings in the module case
by slightly deflecting the latches inward.
4. Press the module into the host case evenly until the latches
engage.
5. Install Module Locks between each module as shown by fully
inserting the legs of the Module Locks into the slots in the
case until the button on the Module Lock aligns with the hole
provided in the case. Press fit the button into the hole. Repeat
this installation between each module in your system to
provide the most secure installation.
6. When you have finished adding modules, the rear cover
should be installed in the same manner as the modules.
To a 3.5 inch Host
1. Align the latches of the module with the host case such that
the backplane connector shroud on the module cover aligns
with the backplane connector opening in the host case.
WARNING - Disconnect all power to the unit before
installing or removing modules.
AVERTISSEMENT - Débranchez l’alimentation électrique
de l’appareil avant d’installer ou de retirer des modules.
Installation of the product must comply with National Electrical
Code (NEC), NFPA-70 or Canadian Electrical Code (CED) or any
local regulation Authority.
Short Side
Tall Side
Position 1
Rear Cover
It is recommended that a
relay module be installed
in Module Position 1 only
(shown below).
Rear Cover
Position 1
It is recommended that a
relay module be installed
directly onto the back of
the host (shown below),
not on the back of any
other module.
SPECIFICATIONS
Note: The PM-50 4.3 inch host accepts a maximum of 5
modules while the 3.5 inch host accepts a maximum of 3.
Only one module from each function type (i.e. communication,
relay, analog output) can be installed.
1. POWER: Power is supplied by the PM-50 host device.
Must use a Class 2 circuit according to National Electrical
Code (NEC), NFPA-70 or Canadian Electrical Code (CEC),
Part I, C22.1 or a Limited Power Supply (LPS) according to
IEC/EN 60950-1 or Limited-energy circuit according to IEC/
EN 61010-1.
Max Power: 0.55 W
2. RS232 COMMUNICATIONS: Field installable module
Isolation: 1000 Vrms for 1 minute
Baud Rate: 300 to 115200
Data Format: 7/8 bits; odd, even or no parity
3. ENVIRONMENTAL CONDITIONS:
Operating Temperature Range: -10 to 55 °C
Storage Temperature Range: -40 to 85 °C
Vibration to IEC 68-2-6: Operational 5-500 Hz, 2 g
Shock to IEC 68-2-27: Operational 20 g
Operating and Storage Humidity: 0 to 85% max. RH non-
condensing
Altitude: Up to 2000 meters
Installation Category II, Pollution Degree 2 as defined in IEC/
EN 60664-1.
4. CERTIFICATIONS AND COMPLIANCES:
CE Approved
EN 61326-1 Immunity to Industrial Locations
Emission CISPR 11 Class A
IEC/EN 61010-1
RoHS Compliant
UL Hazardous: File # E317425
Rugged IP20 enclosure
5. CONSTRUCTION: Plastic enclosure with IP20 rating. For use
only in an approved enclosure.
6. CONNECTIONS: High compression cage-clamp terminal
blocks
Wire Strip Length: 0.32-0.35" (8-9 mm)
Wire Gauge Capacity: Four 28 AWG (0.32 mm) solid,
two 20 AWG (0.61 mm) or one 16 AWG (2.55 mm)
Torque: 2 inch-lbs (0.23 N-m)
7. WEIGHT: 1.4 oz (39.7 g)

3
Effective 08 2021 Drawing No. LP1143
2. Insert the module latches into the openings in the host case
by slightly deflecting the latches inward.
3. Press the module into the host case evenly until the latches
engage.
4. Install Module Locks between each module as shown by fully
inserting the legs of the Module Locks into the slots in the
case until the button on the Module Lock aligns with the hole
provided in the case. Press fit the button into the hole. Repeat
this installation between each module in your system to
provide the most secure installation.
5. When you have finished adding modules, the rear cover
should be installed in the same manner as the modules.
Removing a Module
To remove a module from the assembly, first remove the
module locks using a small screwdriver as shown. Then disengage
the latch by deflecting the latch inward or by using a small screw
driver, inserting it into the slot in the side of the case, and prying
the latch inward to disengage the latch. Once the latches are
disengaged, pull on the module and remove it from the assembly.
WIRING
Power
The RS232 module draws all of its power from the main board
of your PM-50. The specifications of your PM-50 account for the
power needs of the module.
RS232 Communications
RS232 is intended to allow only two devices to communicate
over distances up to 50 feet. Data Terminal Equipment (DTE)
transmits data on the Transmitted Data (TXD) line and receives
data on the Received Data (RXD) line. Data Computer Equipment
(DCE) receives data on the TXD line and transmits data on the RXD
line. The PM-50 emulates a DTE. If the other device connected to
the meter also emulates a DTE, the TXD and RXD lines must be
interchanged for communications to take place. This is known as a
null modem connection. Most printers emulate a DCE device while
most computers emulate a DTE device.
LEDs
STS
LED will blink fast when initializing. LED will be solid when
running normally.
RX/TX
The transmit LED(TX) will flash when information is transmitted
from the RS232 module. The receive LED(RX) will flash when
information is received.
RED LION CONTROLS TECHNICAL SUPPORT
If for any reason you have trouble operating, connecting, or
simply have questions concerning your new product, contact Red
Lion’s technical support.
Support: support.redlion.net
Website: www.redlion.net
Inside US: [phone]
Outside US: [phone]
Red Lion Controls, Inc.
20 Willow Springs Circle York, PA 17406
Latch
1TXD
RXD
COMM.
RS232 MODULE
RECEIVING DEVICE
2
RXD
TXD
3
3 2
75 5
DTE
3
2
DB9
2
3&4
RTS
5
DTEDCE
DB25DB25
CTS
6CTS
RTS
Terminal Block Connection Figure
TxD
RxD
COM
COM
RTS
CTS
TX
RX
STS
RS232 Module

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COPYRIGHT
©2021 Red Lion Controls, Inc. All rights reserved. Red Lion and the Red Lion logo are trademarks of Red Lion Controls, Inc. All other
company and product names are trademarks of their respective owners.
LIMITED WARRANTY
(a) Red Lion Controls Inc. (the “Company”) warrants that all Products shall be free from defects in material and
workmanship under normal use for the period of me provided in “Statement of Warranty Periods” (available at
www.redlion.net) current at the me of shipment of the Products (the “Warranty Period”). EXCEPT FOR THE
ABOVE-STATED WARRANTY, COMPANY MAKES NO WARRANTY WHATSOEVER WITH RESPECT TO THE
PRODUCTS, INCLUDING ANY (A) WARRANTY OF MERCHANTABILITY; (B) WARRANTY OF FITNESS FOR
A PARTICULAR PURPOSE; OR (C) WARRANTY AGAINST INFRINGEMENT OF INTELLECTUAL PROPERTY
RIGHTS OF A THIRD PARTY; WHETHER EXPRESS OR IMPLIED BY LAW, COURSE OF DEALING, COURSE
OF PERFORMANCE, USAGE OFTRADE OR OTHERWISE. Customer shall be responsible for determining that a
Product is suitable for Customer’s use and that such use complies with any applicable local, state or federal law.
(b) The Company shall not be liable for a breach of the warranty set forth in paragraph (a) if (i) the defect is a
result of Customer’s failure to store, install, commission or maintain the Product according to specicaons; (ii)
Customer alters or repairs such Product without the prior wrien consent of Company.
(c) Subject to paragraph (b), with respect to any such Product during the Warranty Period, Company shall, in its
sole discreon, either (i) repair or replace the Product; or (ii) credit or refund the price of Product provided that,
if Company so requests, Customer shall, at Company’s expense, return such Product to Company.
(d) THE REMEDIES SET FORTH IN PARAGRAPH (c) SHALL BE THE CUSTOMER’S SOLE AND EXCLUSIVE
REMEDY AND COMPANY’S ENTIRE LIABILITY FOR ANY BREACH OF THE LIMITED WARRANTY SET
FORTH IN PARAGRAPH (a).
BY INSTALLING THIS PRODUCT, YOU AGREE TO THE TERMS OF THIS WARRANTY, AS WELL AS ALL OTHER
DISCLAIMERS AND WARRANTIES IN THIS DOCUMENT.