·Some details are not shown. Please refer to specification sheets for all information.

61M

Field Network Modules 61-UNIT Series

ANALOG I/O MODULE
(Modbus; RS-485)

Functions & Features
• Interfacing analog I/O signals from/to Mini-M, Pico-M and other signal conditioner modules with Modbus
• Saving power and I/O wiring inside an instrumentation panel

MODEL: 61M–16[1]–[2][3]

ORDERING INFORMATION
• Code number: 61M-16[1]-[2][3]
Specify a code from below for each [1]  through [3].
  (e.g. 61M-161-K/Q)
• Specify the specification for option code /Q
  (e.g. /C01)

NO. OF CHANNELS
16: 16 points

[1] I/O TYPE
1: Input
2: Output

[2] POWER INPUT
AC Power
K: 85 – 132 V AC
(Operational voltage range 85 – 132 V, 47 – 66 Hz)
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
(Specify power suffix code R (24 V DC) when the UNIT is to be
combined with the M8BS2.)

[3] OPTIONS
blank: none
/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating

RELATED PRODUCTS
• Installation Base (model: M2BS2)
• Installation Base (model: M8BS2)

PACKAGE INCLUDES...
• Terminating resistor (110 Ω, 0.25 W)

GENERAL SPECIFICATIONS
Construction: Plug-in
Connection
  Modbus
: Euro type connector terminal (applicable wire
  size: 0.2 to 2.5 mm2, stripped length 7 mm)
  I/O: Via Installation Base (model: MxBS2)
  Power input: Via Installation Base (model: MxBS2)
Housing material: Flame-resistant resin (black)
Isolation: I/O to Modbus to power
Power indicator: Green LED turns on with power supplied.

MODBUS COMMUNICATION
Communication: Conforms to TIA/EIA-485-A
Transmission setting: DIP switch
  Data: RTU (Binary) or ASCII
  Parity: none, even or odd
  Baud rate: 4800, 9600, 19.2 k, 38.4 k (bps)
Node address setting: Rotary switch; 01 – F7
(factory setting: 00)
L RUN indicator: Red LED turns on for 10 sec. when the module receives data.
L ERR. indicator: Red LED turns on at errors in parity, framing, overrun, CRC or LRC.
SD indicator: Red LED turns on when transmitting.
RD indicator: Red LED turns on when receiving.
Analog input: Programming Unit (model: PU-2x) or via Modbus
  Moving averaging: None, every 2 or 4 samples
  Sampling rate: 400, 240, or 160 (msec.)

INPUT SPECIFICATIONS
Analog Input
Input range: 1 – 5 V DC
Input resistance: ≥ 1 MΩ
(Each input must be isolated by signal conditioners. Non-isolated modules such as M2BW and M8BW are not usable.)
A/D conversion output
Signed binary (2-byte data)
Signal range 0 – 100 % is proportional to hexadecimal 0000 – 2710 (0 – 10000). -15 to 0 % is a negative range represented by 2's complements.
Overall range is represented by hexadecimal FA24 – 2CEC (-1500 – +11500), for -15 – +115 %.
Floating data (4-byte data)
Initial signal range 0 – 100 % is proportional to 0 – 10000, that is possible to be scaled into a specific range.

OUTPUT SPECIFICATIONS
Analog Output
Output range: 1 – 5 V DC
Load resistance: 20 kΩ minimum
(Output must be isolated with signal conditioners.
When the transmission line is open, the last value sampled before failure is held. Non-isolated modules such as M2BW and M8BW are not usable. )
D/A Conversion Input
Signed binary (2-byte data)
Signal range 0 – 100 % is proportional to hexadecimal 0000 – 2710 (0 – 10000). -15 to 0 % is a negative range represented by 2's complements.
Overall range is represented by hexadecimal FA24 – 2CEC (-1500 – +11500), for -15 – +115 %.
Floating data (4-byte data)
Initial signal range 0 – 100 % is proportional to 0 – 10000, that is possible to be scaled into a specific range.

INSTALLATION
Power consumption
AC: Approx. 4 VA
DC: Approx. 4 W (160 mA)
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Atmosphere: No corrosive gas or heavy dust
Mounting: Installation Base (model: MxBS2)
Weight: 250 g (0.55 lb)

PERFORMANCE in percentage of span
A/D conversion: ±0.1 %
D/A conversion: ±0.1 %
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Permissible power failure duration: ≤ 10 msec.
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @ 1 minute (I/O to Modbus to power)

EXTERNAL VIEW

MODBUS FUNCTION CODES & SUPPORTED CODES

MODBUS I/O ASSIGNMENT

EXTERNAL DIMENSIONS unit: mm (inch)

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

M-System Co., Ltd.